Question

Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming pool in 4 hours. How many hours will it take 4 large and 4 small pumps to fill the swimming pool.(We assume that all large pumps are similar and all small pumps are also similar.)


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Answer 1

Answer:

Answer. It will take 20 hours to drain the swimming pool using only 2 pumps. 33 ..

Step-by-step explanation:

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Answer 2

Answer:

x=20/12 hrs , or 100 mins.