SOLUTION: A pond can be filled by one pipe in 8 hours and by a second pipe in 24 hours. How long will it take using both pipes to fill the pond?

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Question 818961: A pond can be filled by one pipe in 8 hours and by a second pipe in 24 hours. How long will it take using both pipes to fill the pond?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

A pond can be filled by one pipe in 8 hours and by a second pipe in 24 hours. How long green%28x%29 will it take using both pipes to fill the pond?

 1%2F%288hr%29+%2B+1%2F%2824hr%29+=+1%2Fx      |Multiplying thru by 24x so as all denominators = 1

    3x + x = 24              |Solve for x