SOLUTION: a tank can be filled by a 7.5 cm pipe in 40 minutes. how long will it take for a 10 cm pipe to fill it?

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Question 840528: a tank can be filled by a 7.5 cm pipe in 40 minutes. how long will it take for a 10 cm pipe to fill it?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

a tank can be filled by a 7.5 cm pipe in 40 minutes. 

how long highlight_green%28x%29 will it take for a 10 cm pipe to fill it?

%287.5cm%29%2840min%29+=+%2810cm%29x       | Cross Multiplying to solve

    %287.5cm%29%2840min%29%2F%2810cm%29

    x = 30min

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