TN Police PC · Mathematics & Numerical Ability
Work efficiency and 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 both work together, in how many days will they complete the work?
Q2 · Time & Work · EASY
15 men can complete a piece of work in 20 days. How many days will 10 men take to complete the same work?
Q3 · Time & Work · MEDIUM
A pipe can fill a tank in 15 hours. Due to a leak at the bottom, it takes 20 hours to fill the tank. If the tank is full, in how many hours will the leak empty it?
Q4 · Time & Work · HARD
A and B together can complete a work in 12 days. A alone can complete it in 20 days. After A and B worked together for 8 days, A left. In how many more days will B complete the remaining work?
Q5 · Time & Work · MEDIUM
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?