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nikitadnepr [17]

3 years ago

14

A pool can be filled by one pipe in 8 hours and by a second pipe in 2 hours. How long will it take using both pipes to fill the

pool?

1 answer:

andreev551 [17]3 years ago

7 0

let the time taken to be filled by both pipes be y

1/2 +1/8=1/y

(4+1)/8=1/y

5/8=y

cross multiplying

5y=8

y=8/5

=1.6hrs

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Step-by-step explanation:

Step 1:

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As we have two sides of the triangle, we can solve for the length of the other side by using Pythagoras' theorem.

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Step-by-step explana

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