Time & Work / Pipes — practice questions, page 2
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Asha needs 42 hours to key in a court record by herself, and Balwinder needs 63 hours. Typing it…Gauri can prepare a science-fair model in 25 days and Tejas in 50 days. They work on it together…An inlet fills a godown's water tank in 27 hours, while an outlet drains the full tank in 54…Two pipes A and B can fill a tank in 15 and 20 minutes respectively. Both are opened together, and…Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. Both are opened…A can do a work in 10 days and B in 15 days. They work together for 4 days, then A leaves. In how…A is twice as efficient as B. Working together they finish a work in 12 days. In how many days can…12 men can do a work in 18 days. After they work for 6 days, 6 more men join them. In how many…A is twice as efficient as B. Working together they complete a piece of work in 12 days. In how…A can complete a work in 10 days. He works for 4 days and then leaves. B completes the remaining…Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. Both are opened…Kiran can iron a pile of school uniforms in 12 hours and Lata can do it in 28 hours. Working…Pooja and Rani together pack a large online order in 18 days. Pooja alone would take 45 days. How…15 workers can build a wall in 20 days. Working at the same rate, how many days will 25 workers…A is twice as efficient as B, and together they can finish a work in 12 days. In how many days can…Anwar can paint a school hall in 20 days and Bimal in 30 days. They paint together for 8 days, and…6 men or 8 women can complete a piece of work in 24 days. In how many days can 6 men and 8 women…A garden hose fills a fish pond in 11 hours and a second hose fills it in 44 hours. With both…Two pipes A and B can fill a tank in 20 minutes and 30 minutes respectively. Both are opened…Tarun alone can build a garden shed in 16 days, while Uday alone needs 48 days. They start…Ravi works three times as fast as Sohan. Together they finish a job in 9 days. How many days would…A hotel's water tank is filled by an inlet in 7 hours and emptied by an outlet in 21 hours.…Pipe P fills a tank in 16 minutes and pipe Q in 24 minutes. Both are opened together, but P is…A is twice as efficient as B. Working together they finish a job in 12 days. How many days would A…A can do a work in 20 days. He works alone for 5 days and then B finishes the remaining work in 9…
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