1. A uniform pipe can fill a tank in 4 hours andpipe B can empty it in 5 hours. If both pipes areopened at the same time, when will the tank befull?. Created by Adrienette. Math

1. A uniform pipe can fill a tank in 4 hours andpipe B can empty it in 5 hours. ...

Answer:

$time \: taken \: by \: pipe \: a \: to \: fill \: the \: tank \: = 4 \: hours \\ time \: taken \: by \: pipe \: b \: to \: empty \: the \: tank \: = 5 \: hrs \\ \\ if \: both \: pipes \: are \: opened \: together \: time \: taken \: to \: fill \: the \: tank \: = = \\ \frac{1}{4} - \frac{1}{5} \\ = \frac{5 - 4}{20} \\ = \frac{1}{20hrs} \\ time \: taken \: by \: both \: the \: taps \: to \: fill \: the \: tank \: together = 20 \: hours.... \\ \\ hope \: this \: helps \: you \: plzz \: mark \: as \: brainliest......$

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