### Aptitude Questions - for Placements

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.

(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.