contestada

An inlet pipe can fill a pool in 12 hours, while an outlet pipe can empty it in 15 hours. if both pipes are left open, how long will it take to fill the pool

Respuesta :

jorel1380
1/12-1/15=1/n
10-8/120=1/n
2n=120
n=60
It will take 60 hours to fill the pool that way
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