Question: 28 pipes can empty a tank in 4 days working 8 hours a day. If 84 pipes are used to for 5 hours each

28 pipes can empty a tank in 4 days working 8 hours

28 pipes can empty a tank in 4 days working 8 hours a day. If 84 pipes are used to for 5 hours each day, then the same work will be completed in a) 4.(2/15) b) 1.(2/15) c) 3. (2/15) d) 2.(2/15) None of these

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