One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in $36$ minutes, then the slower pipe alone will be able to fill the tank in.
$81$ min.
$108$ min.
$144$ min.
$192$ min.

Question

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in $36$ minutes, then the slower pipe alone will be able to fill the tank in.
$81$ min.
$108$ min.
$144$ min.
$192$ min.

Toppr Admin · Accepted Answer

The correct option is C 144 min-Let the slower pipe alone fill the tank in x minutes-Then- faster pipe will fill it in x3 minuts-x2234-1x-3x-136-x21D2-4x-136-x21D2-x-144 min-

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in.81 min.108 min.144 min.192 min.

The correct option is C 144 min.Let the slower pipe alone fill the tank in x minutes.Then, faster pipe will fill it in x3 minuts.∴1x+3x=136⇒4x=136⇒x=144 min.

One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in $36$ minutes, then the slower pipe alone will be able to fill the tank in.
$81$ min.
$108$ min.
$144$ min.
$192$ min.

The correct option is C $144$ min.
Let the slower pipe alone fill the tank in x minutes.
Then, faster pipe will fill it in $\frac{x}{3}$ minuts.
$∴ \frac{1}{x} + \frac{3}{x} = \frac{1}{36}$
$\Rightarrow \frac{4}{x} = \frac{1}{36}$
$\Rightarrow x = 144$ min.