UP Police SI · Numerical & Mental Ability
Work efficiency, pipes & cisterns.
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Q1 · Time & Work · EASY
A can complete a work in 12 days and B can complete the same work in 18 days. If they work together, in how many days will they complete the work?
Q2 · Time & Work · MEDIUM
A pipe can fill a tank in 20 minutes and another pipe can empty it in 30 minutes. If both pipes are opened together, how long will it take to fill the empty tank?
Q3 · Time & Work · MEDIUM
A and B together can complete a piece of work in 8 days. B alone can complete it in 12 days. In how many days can A alone complete the work?
Q4 · Time & Work · HARD
15 men can complete a work in 20 days. After 5 days, 5 more men joined them. In how many more days will the work be completed?
Q5 · Time & Work · EASY
A can complete a work in 12 days while B can complete the same work in 18 days. If both work together, in how many days will they finish the work?