Time and Work MCQ & Answers [With PDF]

A can complete a work in 15 days and B can complete the same work in 20 days. They work together for 4 days, then A leaves. In how many more days will B complete the remaining work?

A pipe can fill a tank in 6 hours and another pipe can fill it in 8 hours. A third pipe can empty the tank in 12 hours. If all three pipes are opened together, in how many hours will the tank be filled?

12 men can complete a work in 8 days. After working for 3 days, 4 more men joined them. In how many more days will they complete the remaining work?

A and B working together can complete a task in 12 days. A working alone takes 8 days more than B working alone. How many days does A take to complete the work alone?

A contractor undertook to finish a work in 124 days and employed 120 men. After 64 days, he found that he had completed 2/5 of the work. How many additional men should he employ to finish the work in time?

A tank has two pipes A and B. Pipe A alone can fill the tank in 4 hours and pipe B alone can empty the tank in 6 hours. If both pipes are opened simultaneously when the tank is half full, how long will it take to fill the tank completely?

20 men working 8 hours a day can complete a work in 15 days. How many men working 6 hours a day can complete the same work in 20 days?

A tap can fill a cistern in 3 hours. Due to a leak in the bottom, it takes 3.5 hours to fill the cistern. In how many hours can the leak empty the full cistern?

A piece of work can be completed by A and B together in 18 days, by B and C together in 24 days, and by A and C together in 36 days. In how many days can A, B and C together complete the work?

A contractor estimates that 3 persons could rewire Jaswinder's house in 4 days. If he uses 4 persons instead of 3, how long should the job take?

A can do a piece of work in 80 days. He works at it for 10 days and then B alone finishes the remaining work in 42 days. In how many days could A and B together finish the work?

Two pipes A and B can fill a tank in 12 and 16 hours respectively. Both pipes are opened simultaneously. After how many hours should pipe B be closed so that the tank is full in 9 hours?

A does half as much work as B in three-fourths of the time. If together they take 18 days to complete a work, how much time shall B take to do it alone?

A water tank has three pipes connected to it. The first two pipes A and B can fill it in 12 and 15 hours respectively when working alone. The third pipe C is used to empty the tank and can empty it in 20 hours. If all three pipes work together, in how many hours will the tank be filled?

20 men can complete a piece of work in 7 days. How many men will be required to complete the work in 4 days?

A tank can be filled by pipe A alone in 5 hours and by pipe B alone in 4 hours. How long will it take to fill the tank if both pipes are used together?

If 6 men and 8 women can do a piece of work in 10 days while 26 men and 48 women can finish the same work in 2 days, find the time taken by 15 men and 20 women to finish the work.

A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both taps are opened simultaneously, then after how much time will the cistern be full?

A and B together can complete a piece of work in 4 days. If A alone can complete the work in 12 days, in how many days can B alone complete the work?