Aptitude Questions
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Aptitude Questions
Questions
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.
Questions 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because an old member has been replaced by a young member.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.
Questions 11.
Three containers A, B and C have volumes a, b, and c respectively; and container
A is full of water while the other two are empty. If from container A water is
poured into container B which becomes 1/3 full, and into container C which
becomes 1/2 full, how much water is left in container A?
Questions 12.
ABCE is an isosceles trapezoid and ACDE is a rectangle. AB = 10 and EC = 20.
What is the length of AE?
Ans. AE = 10.
Questions 13.
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.
Questions 15
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.
Questions 16.
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.
Questions 17.
If Log2 x - 5 Log x + 6 = 0, then what would the value /
values of x be?
Ans. x = e2 or e3.
Questions 18.
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
Questions 19.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.
Questions 20.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.
Questions 21.
What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12
Ans. 9
Questions 22.
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.
Questions 23.
A wizard named Nepo says "I am only three times my son's age. My father is 40
years more than twice my age. Together the three of us are a mere 1240 years
old." How old is Nepo?
Ans. 360 years old.
Questions 24.
One dog tells the other that there are two dogs in front of me. The other one
also shouts that he too had two behind him. How many are they?
Ans. Three.
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