Time & Work / Pipes — practice questions, page 6
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QuestionA is twice as efficient as B. Working together they can finish a piece of work in 12 days. In how…QuestionA can do a work in 15 days and B in 10 days. They work on alternate days, with A starting on the…Question6 women can complete a piece of work in 24 days, and 8 men can complete the same work in 12 days.…QuestionA village pond is filled by two canals; one alone would take 14 hours and the other alone 21…QuestionA carpenter in Saharanpur can finish an order of wooden stools in 60 days, and his cousin can…QuestionSushma can paint the classroom walls of a primary school in 70 days, and Kamla can do it in 105…QuestionA plumber and his apprentice together fit the pipes of a new house in 30 days. The plumber alone…Question24 labourers can dig an irrigation canal in 35 days. If 28 labourers are employed instead, working…QuestionA is twice as efficient as B. Working together, A and B complete a work in 12 days. In how many…QuestionTap A fills an overhead tank in 8 hours and tap B fills it in 24 hours. With both taps open, how…QuestionTwo pipes can fill a tank in 12 minutes and 18 minutes. Both are opened together, and the faster…QuestionRitu can type a project report in 30 hours and Seema can type it in 45 hours. If they split the…QuestionNeelam can tile a kitchen in 18 days and Rashid in 36 days. They begin together, but Neelam leaves…QuestionTo dig a village pond, 18 labourers need 10 days. Working at the same rate, how many days would 15…QuestionA is twice as efficient as B. Working together they complete a work in 12 days. In how many days…QuestionA borewell pump fills a farm storage tank in 24 hours, but a loose joint can drain the full tank…QuestionWorking as a pair, Tenzing and Pema stitch a batch of school bags in 20 hours. Pema alone would…QuestionAn overhead tank fills through its inlet in 12 hours, and its outlet can empty it when full in 14…QuestionTwo motors pump water into a temple tank in Madurai: one alone needs 15 minutes, the other alone…QuestionImtiaz can whitewash a large school building in 63 days and Farooq can do it in 126 days. If they…QuestionTogether, Ritu and Shalini can weave a durrie in 24 days. Ritu working alone needs 33 days. How…QuestionA is twice as efficient as B. Working together they complete a piece of work in 12 days. In how…QuestionA can complete a piece of work in 24 days. He works alone for 6 days and then leaves; B completes…QuestionPipe P alone fills a swimming pool in 20 hours and pipe Q alone fills it in 80 hours. How long…QuestionWithout any leak, a motor fills a village overhead tank in 4 hours. Because of a leak, the filling…
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