Question

One pump drains one-half of a pond in 3 hours, and then a second pump starts draining the pond. The two pumps working together finish emptying the pond in one and half hour. How long would it take the second pump to drain the pond if it had to the job alone?

Answer 1

Answer:

pond is equal to 1

Step-by-step explanation:

Since it takes 1/5 of an hour for the second pump to drain half the pond it will take the second pump 2/5 of an hour to drain the entire pond by itself. 2/5 of an hour is 24 minutes. The total work of emptying the pond is equal to 1.

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