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8 pumps to to fill a tank in 1 hour 30 minutes. How long will it take, if only 6 pumps ? |
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Answer» `1/(8*3/2)=1/(6*t)` `1/12=1/(6t)` `t=2hour` 8 pumps fill in 3/2 hours=1tanks 1 pump fill in 1 hours=`1/(8*3/2)=1/12` 6 pump fill in 1 hour=`1/12*6=1/2` t=2hours. |
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