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It takes a hose 3 minutes to fill a rectangular aquarium 9 inches long, 13 inches wide, and 14 inches tall. How long will it take the same hose to fill an aquarium measuring 21 inches by 25 inches by 35 inches?  how many minutes does it take?

 Jan 18, 2020
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The volume of the original aquarium is 9" x 13" x 14'  =  1638 cu in.

It is filled in 3 minutes:  1638 cu in / 3 min  =  546 cu in per min.

 

An aquarium that is 21" x 25" x 35" contains 18 375 cu in.

Filling at the rate of 546 cu in per min  (18,375 cu in) / (546 cu in / min)  =  33.65 min (approximately)

 Jan 18, 2020

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