INDIAN STATES ON INTERNATIONAL BOUNDARIES
INDIAN STATES ON INTERNATIONAL BOUNDARIES
- Bordering Pakistan :
- Bordering China :
- Bordering Nepal :
- Bordering Bangladesh :
- Bordering Bhutan :
- Bordering Myanmar :
- Bordering Afghanistan :
Science Question 10
QUESTION
What
is the difference in energy content of raw and boiled rice?
ANSWER:
The energy content of raw
rice is 3620 cal/kg with 12 per cent water content whereas that of boiled
(cooked) rice is 1098 cal/kg with 73 per cent water content. Another variety is
known as parboiled rice. Parboiling is a hydrothermal treatment followed by
drying before milling for the production of milled parboiled grain.
During parboiling, the B vitamins
and minerals from hulls, bran and germ will be leached into endosperm and hence
loss during polishing is minimised. The energy content of parboiled raw rice is
3703 cal/kg with 10 per cent water content whereas that of boiled (cooked)
parboiled rice is 1057 cal/kg with 73 per cent water content .
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Science Question 9
QUESTION:
Why are all the planets in the universe spherical in shape?
ANSWER:
Dip a finger into a bowl of water and then take it out. Now watch the drop of water as it trickles down the finger and drops down. You will notice that the drop of water acquires a spherical shape. Place a drop of mercury on a smooth surface. It attains a spherical shape, this phenomena is due to the cohesive force (force of attraction between the molecules of same element) which brings the molecules closer.
But then why does it take a spherical shape, why not a cubic one? This is because, out of all multidimensional geometric figures, sphere has the least surface area. Thus all particles try their best to attain a spherical shape in order to reduce their surface area. It is for the same reason that when you pour any liquid in space they attain a spherical shape. But this is not the case with solids since their molecules are compactly packed and cannot be displaced. When a new star is born the gas clouds around it condenses to form planets. The dense gas passes through three states, the gaseous state, the molten liquid state and finally the rigid solid state. When a planet is in the first two states it attains a spherical structure due to the cohesive force as mentioned in the illustration. Later the molten planet solidifies into a rigid planet like Earth.
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Why are all the planets in the universe spherical in shape?
ANSWER:
Dip a finger into a bowl of water and then take it out. Now watch the drop of water as it trickles down the finger and drops down. You will notice that the drop of water acquires a spherical shape. Place a drop of mercury on a smooth surface. It attains a spherical shape, this phenomena is due to the cohesive force (force of attraction between the molecules of same element) which brings the molecules closer.
But then why does it take a spherical shape, why not a cubic one? This is because, out of all multidimensional geometric figures, sphere has the least surface area. Thus all particles try their best to attain a spherical shape in order to reduce their surface area. It is for the same reason that when you pour any liquid in space they attain a spherical shape. But this is not the case with solids since their molecules are compactly packed and cannot be displaced. When a new star is born the gas clouds around it condenses to form planets. The dense gas passes through three states, the gaseous state, the molten liquid state and finally the rigid solid state. When a planet is in the first two states it attains a spherical structure due to the cohesive force as mentioned in the illustration. Later the molten planet solidifies into a rigid planet like Earth.
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Science Question 8
QUESTION:
Why is the voltage of electric power always given in multiples of 11 such as
110V, 220V, 440V & 11 KV?
ANSWER:
The electric power in use
today, is of A.C. (Alternating Current) in nature. But, before the advent of AC
power generating electrical machines, the sources of electricity were primary
cells whose power is D.C. (Direct Current) in nature.
So, when machines were developed
to produce AC electricity, their capacity was to be compared with the already
available DC electricity. Thus a value called the RMS (Root Mean Square) value
for the AC electricity was coined. This RMS value equated the power of the AC
electricity with the DC electricity. This RMS value is the effective or virtual
value of the AC electricity. It is of prime importance practically, because all
general-purpose electrical indicating instruments record only the RMS value of
their respective parameters.RMS value of AC electricity could be calculated
either by the mid-ordinate method or by the analytical method and is equal to
0.707 x Max. value of measuring quantity. But, it is easier to calculate the
average value or the arithmetic mean value of the AC electricity than to
calculate the RMS value and the average value is equal to 0.637 x max. value of
measuring quantityA factor could be calculated to relate the RMS value and the
Average value. That is the Form Factor, which is equal to:
Form Factor = RMS Value/ Average
value = 0.707 x Max Value/ 0.637 x Max. Value = 1.11
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Madeeasy Notes SET 3
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Signals & Systems
Analog Electronics
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Signals & Systems
Analog Electronics
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Science NCERT Books
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Present Continuous 2
Present Continuous Positive and Negative 2
Make the present continuous:
1. (they / not / visit their parents)
_______________________________________________________________
2. (he / meet his friend tonight)
_______________________________________________________________
3. (he / not / walk to school now)
_______________________________________________________________
4. (we / not / watch TV at the moment)
_______________________________________________________________
5. (you / not / read a book)
_______________________________________________________________
6. (I / visit Linda tonight)
_______________________________________________________________
7. (she / not / eat dinner now)
_______________________________________________________________
8. (Lucy / not / work in a bookshop this summer)
_______________________________________________________________
9. (they / watch a film)
_______________________________________________________________
10. (we / buy a new car)
_______________________________________________________________
11. (David / have a party tomorrow)
_______________________________________________________________
12. (I / get a bike)
_______________________________________________________________
13. (you / take a long time)
_______________________________________________________________
14. (I / not / come until later)
_______________________________________________________________
15. (Jill and Susan / walk)
_______________________________________________________________
16. (we / not / listen to the radio)
_______________________________________________________________
17. (they / not / speak to each other)
_______________________________________________________________
18. (he / take a shower)
_______________________________________________________________
19. (you / get fat)
_______________________________________________________________
20. (I / not / use the computer)
_______________________________________________________________
ANSWERS:
1. They’re not visiting their parents.
2. He’s meeting his friend tonight.
3. He isn't walking to school now.
4. We aren't watching TV at the moment.
5. You aren’t reading a book.
6. I’m visiting Linda tonight.
7. She isn’t eating dinner now.
8. Lucy isn’t working in a bookshop this summer.
9. They’re watching a film.
10. We’re buying a new car.
11. David’s having a party tomorrow.
12. I’m getting a bike.
13. You’re taking a long time.
14. I’m not coming until later.
15. Jill and Susan are walking.
16. We aren’t listening to the radio.
17. They aren’t speaking to each other.
18. He’s taking a shower.
19. You’re getting fat.
20. I’m not using the computer.
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Make the present continuous:
1. (they / not / visit their parents)
_______________________________________________________________
2. (he / meet his friend tonight)
_______________________________________________________________
3. (he / not / walk to school now)
_______________________________________________________________
4. (we / not / watch TV at the moment)
_______________________________________________________________
5. (you / not / read a book)
_______________________________________________________________
6. (I / visit Linda tonight)
_______________________________________________________________
7. (she / not / eat dinner now)
_______________________________________________________________
8. (Lucy / not / work in a bookshop this summer)
_______________________________________________________________
9. (they / watch a film)
_______________________________________________________________
10. (we / buy a new car)
_______________________________________________________________
11. (David / have a party tomorrow)
_______________________________________________________________
12. (I / get a bike)
_______________________________________________________________
13. (you / take a long time)
_______________________________________________________________
14. (I / not / come until later)
_______________________________________________________________
15. (Jill and Susan / walk)
_______________________________________________________________
16. (we / not / listen to the radio)
_______________________________________________________________
17. (they / not / speak to each other)
_______________________________________________________________
18. (he / take a shower)
_______________________________________________________________
19. (you / get fat)
_______________________________________________________________
20. (I / not / use the computer)
_______________________________________________________________
ANSWERS:
1. They’re not visiting their parents.
2. He’s meeting his friend tonight.
3. He isn't walking to school now.
4. We aren't watching TV at the moment.
5. You aren’t reading a book.
6. I’m visiting Linda tonight.
7. She isn’t eating dinner now.
8. Lucy isn’t working in a bookshop this summer.
9. They’re watching a film.
10. We’re buying a new car.
11. David’s having a party tomorrow.
12. I’m getting a bike.
13. You’re taking a long time.
14. I’m not coming until later.
15. Jill and Susan are walking.
16. We aren’t listening to the radio.
17. They aren’t speaking to each other.
18. He’s taking a shower.
19. You’re getting fat.
20. I’m not using the computer.
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Science Question 7
QUESTION:
What is atrial fibrillation?
ANSWER :
Atrial fibrillation is the most common sustained cardiac arrhythmia. In arrhythmia the atria beats rapidly, chaotically and ineffectively. It is a kind of heart malformation that occurs due to abnormal rhythm of the heart.
A coordinate contraction of all the heart muscles at once, which is required for the pumping cycle leads to a normal rhythm of the heart. But abnormal rhythm of the heart results from cardiac impulses that have gone wild and violent with the auricular muscle mass and ventricular muscle mass, which are respectively called Atrial fibrillation and Ventricular fibrillation.
Since auricular muscle mass is entirely separated from the ventricular muscle mass and insulated from each other by fibrous tissue, these two fibrillations are entirely independent of each other.
The mechanism of atrial fibrillation is identical with that of ventricular fibrillation except that the process occurs in the atrial muscle mass instead of ventricular muscle mass. A very frequent cause of atrial fibrillation is atrial enlargement. It results due to heart valve lesions that prevent the atria from emptying adequately into the ventricles.
In atrial fibrillation the atria become useless as primer pumps for the ventricles. Even so, blood flows positively through the atria into the ventricles and the efficiency of ventricular pumping is decreased only 20 to 30 per cent.
Therefore in contrast to the lethality of ventricular fibrillation, a person can live for months together or even years with atrial fibrillation though at a reduced efficiency of overall heart pumping. The onset of atrial fibrillation can cause palpitation. It may precipitate or aggravate cardiac failure in, patients with an abnormal heart, especially those with mitral stenosis or poor left ventricle function.
Science Question 6
QUESTION:
Why does the
surface of the incandescent light bulbs become progressively Greyer over time?
ANSWER:
The greying of the inner surfaces of incandescent bulbs is the result of
gradual evaporation of tungsten from the filament while the light is on. This
evaporation eventually makes the filament so thin it burns out.
Various
methods have been developed to reduce greying. Filaments of the first
incandescent lamps burnt in a vacuum, but it was soon found that introducing
inert gas to the bulb reduced the rate of greying.
A
mixture of nitrogen and argon is used today. In addition, ``getters'' reactive
metal such as tantalum and titanium can be placed near the filament to attract
the tungsten so that it is not deposited on the glass.
Alternatively,
a small amount of abrasive tungsten powder can be placed in the bulb. Shaking
it occasionally will remove the grey coating from the surface of the glass.
Greying
can almost eliminated by introducing a small amount of the halogens iodine and
bromine. As tungsten evaporates from the filament, it reacts with the halogens
which then redeposit the tungsten on the filament. This keeps the bulb wall
clean.
To
prevent the tungsten halides from condensing on the bulb and breaking the
cycle, the temperature of the bulb wall must be at least 500 -C. This is too
hot for glass bulbs, which normally operate at about 150 -C, so fused quartz
(silicon dioxide) must be used instead.
Compared
with ordinary incandescent lamps, quartz-halogen lamps have longer lives and
maintain their light output over time. For example, a quartz-halogen lamp with
a 2000-hour life.
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51 Best Inspirational Quotes------ SET 2
- When I let go of what I am, I become what I might be. –Lao Tzu
- Life is not measured by the number of breaths we take, but by the moments that take our breath away. –Maya Angelou
- Happiness is not something readymade. It comes from your own actions. –Dalai Lama
- If you’re offered a seat on a rocket ship, don’t ask what seat! Just get on. –Sheryl Sandberg
- First, have a definite, clear practical ideal; a goal, an objective. Second, have the necessary means to achieve your ends; wisdom, money, materials, and methods. Third, adjust all your means to that end. –Aristotle
- If the wind will not serve, take to the oars. –Latin Proverb
- You can’t fall if you don’t climb. But there’s no joy in living your whole life on the ground. –Unknown
- We must believe that we are gifted for something, and that this thing, at whatever cost, must be attained. –Marie Curie
- Too many of us are not living our dreams because we are living our fears. –Les Brown
- Challenges are what make life interesting and overcoming them is what makes life meaningful. –Joshua J. Marine
- If you want to lift yourself up, lift up someone else. –Booker T. Washington
- I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do. –Leonardo da Vinci
- Limitations live only in our minds. But if we use our imaginations, our possibilities become limitless. –Jamie Paolinetti
- You take your life in your own hands, and what happens? A terrible thing, no one to blame. –Erica Jong
- What’s money? A man is a success if he gets up in the morning and goes to bed at night and in between does what he wants to do. –Bob Dylan
- I didn’t fail the test. I just found 100 ways to do it wrong. –Benjamin Franklin
- In order to succeed, your desire for success should be greater than your fear of failure. –Bill Cosby
- A person who never made a mistake never tried anything new. – Albert Einstein
- The person who says it cannot be done should not interrupt the person who is doing it. –Chinese Proverb
- There are no traffic jams along the extra mile. –Roger Staubach
- It is never too late to be what you might have been. –George Eliot
- You become what you believe. –Oprah Winfrey
- I would rather die of passion than of boredom. –Vincent van Gogh
- A truly rich man is one whose children run into his arms when his hands are empty. –Unknown
- It is not what you do for your children, but what you have taught them to do for themselves, that will make them successful human beings. –Ann Landers
- If you want your children to turn out well, spend twice as much time with them, and half as much money. –Abigail Van Buren
- Build your own dreams, or someone else will hire you to build theirs. –Farrah Gray
- The battles that count aren’t the ones for gold medals. The struggles within yourself–the invisible battles inside all of us–that’s where it’s at. –Jesse Owens
- Education costs money. But then so does ignorance. –Sir Claus Moser
- I have learned over the years that when one’s mind is made up, this diminishes fear. –Rosa Parks
- It does not matter how slowly you go as long as you do not stop. –Confucius
- If you look at what you have in life, you’ll always have more. If you look at what you don’t have in life, you’ll never have enough. –Oprah Winfrey
- Remember that not getting what you want is sometimes a wonderful stroke of luck. –Dalai Lama
- You can’t use up creativity. The more you use, the more you have. –Maya Angelou
- Dream big and dare to fail. –Norman Vaughan
- Our lives begin to end the day we become silent about things that matter. –Martin Luther King Jr.
- Do what you can, where you are, with what you have. –Teddy Roosevelt
- If you do what you’ve always done, you’ll get what you’ve always gotten. –Tony Robbins
- Dreaming, after all, is a form of planning. –Gloria Steinem
- It’s your place in the world; it’s your life. Go on and do all you can with it, and make it the life you want to live. –Mae Jemison
- You may be disappointed if you fail, but you are doomed if you don’t try. –Beverly Sills
- Remember no one can make you feel inferior without your consent. –Eleanor Roosevelt
- Life is what we make it, always has been, always will be. –Grandma Moses
- The question isn’t who is going to let me; it’s who is going to stop me. –Ayn Rand
- When everything seems to be going against you, remember that the airplane takes off against the wind, not with it. –Henry Ford
- It’s not the years in your life that count. It’s the life in your years. –Abraham Lincoln
- Change your thoughts and you change your world. –Norman Vincent Peale
- Either write something worth reading or do something worth writing. –Benjamin Franklin
- Nothing is impossible, the word itself says, “I’m possible!” –Audrey Hepburn
- The only way to do great work is to love what you do. –Steve Jobs
- If you can dream it, you can achieve it. –Zig Ziglar
Madeeasy Set 2
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Communication Systems
Power Electronics
Measurements & Instrumentation
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Power Electronics
Measurements & Instrumentation
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Geography NCERT Books
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Geography which is essential for any competitive exams
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Word of the Day
Insolent [in·so·lent] adj.
Showing a rude or arrogant lack of respect. “The child’s insolent behavior was unacceptable.”
Showing a rude or arrogant lack of respect. “The child’s insolent behavior was unacceptable.”
Tax Tricks
Useful Tricks to remember Direct Taxes and Indirect Taxes
Direct taxes- Remember as : we-pro.co.in
We: wealth tax
Pro: property tax
Co: corporate tax
In: income tax
Indirect taxes------- Remember as : Excuse me
Ex: excise tax
Cu: custom tax
Se: service tax
M: market tax/vat
E: entertainment tax
Governor's List
PRESENT GOVERNORS OF
INDIAN STATES
- Andhra Pradesh - E. S. L. Narasimhan
- Arunachal Pradesh – Nirbhay Sharma
- Assam – Janaki Ballabh Patnaik
- Bihar - D. Y. Patil
- Chhattisgarh - Balramji Das Tandon
- Goa – Mridula Sinha
- Gujarat - Om Prakash Kohli
- Haryana - Kaptan Singh Solanki
- Himachal Pradesh - Urmila Singh
- Jammu and Kashmir – Narinder Nath Vohra
- Jharkhand - Syed Ahmed
- Karnataka - Vajubhai Rudabhai Vala
- Kerala - P Sathasivam
- Madhya Pradesh - Ram Naresh Yadav
- Maharashtra - Chennamaneni Vidyasagar Rao
- Manipur - KK Paul
- Meghalaya - Krishan Kant Paul
- Mizoram - Krishan Kant Paul
- Nagaland –Padmanabha Acharya
- Odisha - S. C. Jamir
- Punjab – Shivraj Patil
- Rajasthan – Sh. Kalyan Singh
- Sikkim – Shriniwas Dadasaheb Patil
- Tamil Nadu - K. Rosaiah
- Telangana - E. S. L. Narasimhan
- Tripura - Padmanabha Acharya
- Uttar Pradesh - Ram Naik
- Uttarakhand - Aziz Qureshi
- West Bengal- Keshari Nath Tripathi
Present Continuous 1
Present Continuous Positive and Negative Form 1
Make the present continuous:
1. (he / walk to school now)
______________________________________
2. (I / study at the moment)
_______________________________________________________________
3. (I / not / sleep)
_______________________________________________________________
4. (you / play badminton tonight)
_______________________________________________________________
5. (we / watch TV)
_______________________________________________________________
6. (she / not / work in Spain)
_______________________________________________________________
7. (he / not / wait for the bus)
_______________________________________________________________
8. (they / read)
_______________________________________________________________
9. (we / not / go to the cinema tonight)
_______________________________________________________________
10. (you / not / read the newspaper)
_______________________________________________________________
11. (she / eat chocolate)
_______________________________________________________________
12. (I / not / live in Paris)
_______________________________________________________________
13. (we / study French)
_______________________________________________________________
14. (they / not / leave now)
_______________________________________________________________
15. (they / live in London)
_______________________________________________________________
16. (he / work in a restaurant now)
_______________________________________________________________
17. (I / not / meet my father at four)
_______________________________________________________________
18. (she / not / drink tea now)
_______________________________________________________________
19. (she / play the guitar)
_______________________________________________________________
20. (we / cook)
_______________________________________________________________
Answers:
1. He’s walking to school now.
2. I’m studying at the moment.
3. I'm not sleeping.
4. You're playing badminton tonight.
5. We’re watching TV.
6. She isn't working in Spain.
7. He isn't waiting for the bus.
8. They’re reading.
9. We aren’t going to the cinema tonight.
10. You aren’t reading the newspaper.
11. She's eating chocolate.
12. I’m not living in Paris.
13. We’re studying French.
14. They aren't leaving now.
15. They’re living in London.
16. He’s working in a restaurant now.
17. I'm not meeting my father at four.
18. She isn't drinking tea now.
19. She's playing the guitar.
20. We’re cooking.
Make the present continuous:
1. (he / walk to school now)
______________________________________
2. (I / study at the moment)
_______________________________________________________________
3. (I / not / sleep)
_______________________________________________________________
4. (you / play badminton tonight)
_______________________________________________________________
5. (we / watch TV)
_______________________________________________________________
6. (she / not / work in Spain)
_______________________________________________________________
7. (he / not / wait for the bus)
_______________________________________________________________
8. (they / read)
_______________________________________________________________
9. (we / not / go to the cinema tonight)
_______________________________________________________________
10. (you / not / read the newspaper)
_______________________________________________________________
11. (she / eat chocolate)
_______________________________________________________________
12. (I / not / live in Paris)
_______________________________________________________________
13. (we / study French)
_______________________________________________________________
14. (they / not / leave now)
_______________________________________________________________
15. (they / live in London)
_______________________________________________________________
16. (he / work in a restaurant now)
_______________________________________________________________
17. (I / not / meet my father at four)
_______________________________________________________________
18. (she / not / drink tea now)
_______________________________________________________________
19. (she / play the guitar)
_______________________________________________________________
20. (we / cook)
_______________________________________________________________
Answers:
1. He’s walking to school now.
2. I’m studying at the moment.
3. I'm not sleeping.
4. You're playing badminton tonight.
5. We’re watching TV.
6. She isn't working in Spain.
7. He isn't waiting for the bus.
8. They’re reading.
9. We aren’t going to the cinema tonight.
10. You aren’t reading the newspaper.
11. She's eating chocolate.
12. I’m not living in Paris.
13. We’re studying French.
14. They aren't leaving now.
15. They’re living in London.
16. He’s working in a restaurant now.
17. I'm not meeting my father at four.
18. She isn't drinking tea now.
19. She's playing the guitar.
20. We’re cooking.
Science Question 5
QUESTION:
How are diet eggs
produced?
ANSWER:
Another name for diet eggs is "designer eggs". The name was coined
after extensive research conducted at the University of Alberta, Canada for 12
years. Apparently, it is in the feeding process where the secret of diet eggs
lies.
The
feed is being manufactured by the company itself. Normally, Omega-3 poly
unsaturated fatty acids (PUFA) and vitamin E protein are incorporated into
natural grains and then fed to the chicks.
The
hens lay eggs which are low in cholesterol and resistant to pathogenic bacteria
as Salmonella. Currently in India there are two such diet egg producers. One is
at Mysore and the other is at Bannerghatta in Bangalore.
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Aptitude Question Set 3
Aptitude
1.If 2x-y=4 then 6x-3y=?
(a)15
(b)12
(c)18
(d)10
Ans. (b)
2.If x=y=2z and xyz=256 then what is the value of x?
(a)12
(b)8
(c)16
(d)6
Ans. (b)
3. (1/10)18 - (1/10)20 = ?
(a) 99/1020
(b) 99/10
(c) 0.9
(d) none of these
Ans. (a)
4.Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank
(a) 17 1/7 mins
(b) 20 mins
(c) 8 mins
(d) none of these
Ans. (a)
5. Thirty men take 20 days to complete a job working 9 hours a day.How many hour a day should 40 men work to complete the job?
(a) 8 hrs
(b) 7 1/2 hrs
(c) 7 hrs
(d) 9 hrs
Ans. (b)
6. Find the smallest number in a GP whose sum is 38 and product 1728
(a) 12
(b) 20
(c) 8
(d) none of these
Ans. (c)
7. A boat travels 20 kms upstream in 6 hrs and 18 kms downstream in 4 hrs.Find the speed of the boat in still water and the speed of the water current?
(a) 1/2 kmph
(b) 7/12 kmph
(c) 5 kmph
(d) none of these
Ans. (b)
8. A goat is tied to one corner of a square plot of side 12m by a rope 7m long.Find the area it can graze?
(a) 38.5 sq.m
(b) 155 sq.m
(c) 144 sq.m
(d) 19.25 sq.m
Ans. (a)
9. Mr. Shah decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
Ans.46 steps.
10. The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?
Ans.40 years.
11. ABCE is an isosceles trapezoid and ACDE is a rectangle. AB = 10 and EC = 20. What is the length of AE?
Ans. AE = 10.
12. In the given figure, PA and PB are tangents to the circle at A and B respectively and the chord BC is parallel to tangent PA. If AC = 6 cm, and length of the tangent AP is 9 cm, then what is the length of the chord BC?
Ans. BC = 4 cm.
13.Three cards are drawn at random from an ordinary pack of cards. Find the probability that they will consist of a king, a queen and an ace.
Ans. 64/2210.
14. A number of cats got together and decided to kill between them 999919 mice. Every cat killed an equal number of mice. Each cat killed more mice than there were cats. How many cats do you think there were ?
Ans. 991.
15. If Log2 x - 5 Log x + 6 = 0, then what would the value / values of x be?
Ans. x = e2 or e3.
16. The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in the original number, but they are in reverse order. The ten's place of the original number is equal to twice the difference between its digits. What is the number?
Ans. 46
17.Can you tender a one rupee note in such a manner that there shall be total 50 coins but none of them would be 2 paise coins.?
Ans. 45 one paisa coins, 2 five paise coins, 2 ten paise coins, and 1 twenty-five paise coins.
18.A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?
Ans.18 hours.
19. What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12
Ans. 9
20. A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. of the mixture?
Ans. Brand A needed is 24kgs
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1.If 2x-y=4 then 6x-3y=?
(a)15
(b)12
(c)18
(d)10
Ans. (b)
2.If x=y=2z and xyz=256 then what is the value of x?
(a)12
(b)8
(c)16
(d)6
Ans. (b)
3. (1/10)18 - (1/10)20 = ?
(a) 99/1020
(b) 99/10
(c) 0.9
(d) none of these
Ans. (a)
4.Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank
(a) 17 1/7 mins
(b) 20 mins
(c) 8 mins
(d) none of these
Ans. (a)
5. Thirty men take 20 days to complete a job working 9 hours a day.How many hour a day should 40 men work to complete the job?
(a) 8 hrs
(b) 7 1/2 hrs
(c) 7 hrs
(d) 9 hrs
Ans. (b)
6. Find the smallest number in a GP whose sum is 38 and product 1728
(a) 12
(b) 20
(c) 8
(d) none of these
Ans. (c)
7. A boat travels 20 kms upstream in 6 hrs and 18 kms downstream in 4 hrs.Find the speed of the boat in still water and the speed of the water current?
(a) 1/2 kmph
(b) 7/12 kmph
(c) 5 kmph
(d) none of these
Ans. (b)
8. A goat is tied to one corner of a square plot of side 12m by a rope 7m long.Find the area it can graze?
(a) 38.5 sq.m
(b) 155 sq.m
(c) 144 sq.m
(d) 19.25 sq.m
Ans. (a)
9. Mr. Shah decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
Ans.46 steps.
10. The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?
Ans.40 years.
11. ABCE is an isosceles trapezoid and ACDE is a rectangle. AB = 10 and EC = 20. What is the length of AE?
Ans. AE = 10.
12. In the given figure, PA and PB are tangents to the circle at A and B respectively and the chord BC is parallel to tangent PA. If AC = 6 cm, and length of the tangent AP is 9 cm, then what is the length of the chord BC?
Ans. BC = 4 cm.
13.Three cards are drawn at random from an ordinary pack of cards. Find the probability that they will consist of a king, a queen and an ace.
Ans. 64/2210.
14. A number of cats got together and decided to kill between them 999919 mice. Every cat killed an equal number of mice. Each cat killed more mice than there were cats. How many cats do you think there were ?
Ans. 991.
15. If Log2 x - 5 Log x + 6 = 0, then what would the value / values of x be?
Ans. x = e2 or e3.
16. The square of a two digit number is divided by half the number. After 36 is added to the quotient, this sum is then divided by 2. The digits of the resulting number are the same as those in the original number, but they are in reverse order. The ten's place of the original number is equal to twice the difference between its digits. What is the number?
Ans. 46
17.Can you tender a one rupee note in such a manner that there shall be total 50 coins but none of them would be 2 paise coins.?
Ans. 45 one paisa coins, 2 five paise coins, 2 ten paise coins, and 1 twenty-five paise coins.
18.A monkey starts climbing up a tree 20ft. tall. Each hour, it hops 3ft. and slips back 2ft. How much time would it take the monkey to reach the top?
Ans.18 hours.
19. What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12
Ans. 9
20. A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. of the mixture?
Ans. Brand A needed is 24kgs
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