3
Q:

X is 25% more efficient than Y. If Y alone can make a chair in 10 days, then X alone can make the chair in how many days?

 A) 8 B) 12 C) 12.5 D) 7.5

Explanation:
Q:

U, V and W together can make a chair in 20 minutes. U and V together can make it in 25 minutes. How much time will (in minutes) W alone take to make the chair?

 A) 100 B) 90 C) 60 D) 120

Explanation:

0 12
Q:

X boys can do a piece of work in 24 days. In how much time (in days), 2X boys will do half of the work?

 A) 6 B) 12 C) 18 D) 8

Explanation:

0 104
Q:

Atul can do a piece of work in 18 days, Aaravya is 50% more efficient than Atul. How much more time does Atul take than Aaravya to do the same piece of work?

 A) 12 B) 6 C) 18 D) 10

Explanation:

0 111
Q:

B is thrice as efficient as A and C is 0.75 times as efficient as A. What is the ratio of number of days taken by A, B and C when they work individually?

 A) 4:1:3 B) 3:1:4 C) 2:3:1 D) 5:1:2

Explanation:

0 77
Q:

Mayank, Deepak and Pawan, each of them working alone can complete a work in 5, 10 and 15 days respectively. If all three of them work together to complete a work and earn Rs. 12000 what will be Deepak's share of the earnings?

 A) Rs. 2000 B) Rs. 6000 C) Rs. 4000 D) Rs. 3000

Explanation:

1 79
Q:

A work can be completed by 18 boys in 24 days. If 6 boys leave after working for 12 days, then how many days will be needed to complete the remaining work?

 A) 12 B) 15 C) 18 D) 24

Explanation:

2 101
Q:

A and B together can complete a task in 12 days. However, if A works alone, completes half the job and leaves and then B works alone and competes the rest of the work, it takes 25 days in all to complete the work. If B is more efficient than A, how many days would it have taken B to do the work by herself?

 A) 18 B) 22 C) 20 D) 15

Explanation:

1 170
Q:

X can finish 25% of a work in a day. Y can do 12.5% of the same work in a day. In how many days, will both of them finish the work together?

 A) 2.67 days B) 2.33 days C) 3.33 days D) 3.67 days