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Quantitative-aptitude Questions Set 152:

Quiz Mode

Two numbers are in the ratio 5:7. If their least common multiple (LCM) is 175, find the sum of the numbers.

Solution:

At what time between 4 and 5 o'clock will the hands of a clock be together?

22 * (11/2)

22 * (2/11)

23 * (2/11)

23 * (1/5)

Solution:

Find the sun of the digits of the least natural number P, such that the sum of the cubes of the four smallest distinct divisors of P equals 2P

Solution:

Two cards are selected at random from a standard deck of 52 playing cards. The probability that this set of cards contains exactly 1 Ace is?

8/51

2/51

32/221

16/221

Solution:

A, B, and C can complete a piece of work in 3, 6, and 12 days respectively. How long will it take them to complete the work together?

1/3 days

7/12 days

1/7 days

1/21 days

Solution:

A and B can do a piece of work in 5 days, B and C in 10 days, and C and A in 15 days. In how many days will they finish the work together?

5.1 days

4.5 days

1.4 days

5.45 days

Solution:

The sum of the present ages of A, B, and C is 92 years. If 4 years ago, the ratio of their ages were 1:2:3 respectively, find A’s present age.

17.3 years

17.2 years

15.2 years

None of these

Solution:

A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?

1/21

2/21

3/21

20/21

Solution:

A square is drawn by joining the midpoints of the sides of a given square. Find the ratio between the area of the original square and the area of the square formed by joining the midpoints.

1:1

1:2

2:1

4:1

Solution:

Two pipes A and B can fill a cistern in 375 minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:

5 min.

7.5 min.

9 min.

12 min.

Quantitative-aptitude Questions Set 152:

Two numbers are in the ratio 5:7. If their least common multiple (LCM) is 175, find the sum of the numbers.

Solution:

At what time between 4 and 5 o'clock will the hands of a clock be together?

Solution:

Find the sun of the digits of the least natural number P, such that the sum of the cubes of the four smallest distinct divisors of P equals 2P

Solution:

Two cards are selected at random from a standard deck of 52 playing cards. The probability that this set of cards contains exactly 1 Ace is?

Solution:

A, B, and C can complete a piece of work in 3, 6, and 12 days respectively. How long will it take them to complete the work together?

Solution:

A and B can do a piece of work in 5 days, B and C in 10 days, and C and A in 15 days. In how many days will they finish the work together?

Solution:

The sum of the present ages of A, B, and C is 92 years. If 4 years ago, the ratio of their ages were 1:2:3 respectively, find A’s present age.

Solution:

A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are picked at random, what is the probability that they are either blue or yellow?

Solution:

A square is drawn by joining the midpoints of the sides of a given square. Find the ratio between the area of the original square and the area of the square formed by joining the midpoints.

Solution:

Two pipes A and B can fill a cistern in 375 minutes and 45 minutes respectively. Both pipes are opened. The cistern will be filled in just half an hour, if the B is turned off after:

Solution:

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