SSC CGL · Quantitative Aptitude

Time and work

11 practice questions, each with the answer and an explanation.

Practise Time and work now

Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.

All 11 questions

A can finish a job in $12$ days and B in $6$ days. Working together, in how many days can they finish it?
A can finish a job in $60$ days and B in $20$ days. Working together, in how many days can they finish it?
A can finish a job in $18$ days and B in $9$ days. Working together, in how many days can they finish it?
A can finish a job in $45$ days and B in $90$ days. Working together, in how many days can they finish it?
A can finish a job in $15$ days and B in $10$ days. Working together, in how many days can they finish it?
A can finish a job in $40$ days and B in $10$ days. Working together, in how many days can they finish it?
A can complete a piece of work in 24 days, B in 32 days, and C in 48 days. All three start working together, but A leaves 4 days before the scheduled completion and B leaves 3 days before completion.…
Pipe A and Pipe B can fill a cistern in 15 hours and 20 hours respectively, while Pipe C can empty it in 25 hours. All three pipes are opened together. After 10 hours, Pipe C is closed. In how many ad…
Working alone, 12 men can complete a project in 18 days. After they have worked for 6 days, 4 more men join them. In how many more days will the remaining work be finished?
A is twice as efficient as B, and B is 1.5 times as efficient as C. If all three working together can finish a job in 12 days, in how many days can C alone finish the entire job?
Two workers P and Q are hired to paint a fence. P works alone on day 1, Q works alone on day 2, and they continue working on alternate days. If P can paint the whole fence in 10 days and Q in 15 days…

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