Time & Work / Pipes — practice questions, page 5
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Neeta can finish a report in 24 days and Om in 36 days. They work on it together for 6 days, and…One inlet can fill a factory's water tank in 20 hours and a second inlet can fill it in 44 hours.…Normally an inlet fills a water drum in 7 hours, but a hole in the drum makes the filling take 8…A tank has two inlet pipes that can fill it in 10 hours and 15 hours, and an outlet pipe that can…Farida can embroider a shawl in 27 days and her sister in 108 days. If they share the work, how…A can do a piece of work in 10 days and B can do it in 15 days. They work together for 4 days.…A is twice as efficient as B. Working together, A and B complete a piece of work in 8 days. How…12 workers complete a job in 9 days working 8 hours a day. How many days will 8 workers take to…One motor pump can fill a gram panchayat tank in 55 hours and a second pump can fill it in 66…An inlet fills an empty overhead tank in Coimbatore in 4 hours, while a leaky valve can empty the…Two hosepipes fill a large terrace garden tank: the first alone in 60 minutes, the second alone in…Rekha can type a project report in 14 hours and Sunita can type it in 42 hours. If they split the…Leela can stitch a set of curtains in 25 days and Manju in 40 days. They work together for 8 days,…A is twice as efficient as B. Working together they complete a work in 12 days. How many days…A can do a work in 15 days and B in 10 days. They start together, but B leaves 2 days before the…Two pipes can fill a swimming pool separately in 28 hours and 70 hours. Running together, how many…An inlet fills a tank in 9 hours while an outlet empties the full tank in 24 hours. If both are…Pipe P fills a tank in 12 hours and pipe Q in 16 hours. Both are opened together, but Q is turned…Kamla, Rita and Seema can stitch a batch of uniforms in 12, 15 and 20 days respectively. Working…A carpenter can make a cupboard in 12 days and his assistant in 18 days. After working together…A is twice as efficient as B. Working together they complete a work in 8 days. In how many days…Two diesel pumps drain water into a paddy field in Thanjavur; pump X alone needs 35 hours and pump…A temple tank in Madurai is fed by two pipes, one filling it alone in 44 minutes and the other in…Harpreet, Ishaan and Jaya can each paint a classroom mural alone in 14, 21 and 42 days…Farida can paint a school boundary wall in 18 days and Gopal in 27 days. They paint together for 4…
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