WBCS.LIVE practice question

Two pipes can fill a tank in 25 hours and 35 hours respectively. Find the time (in hours) taken to fill the tank when both the pipes are opened simultaneously.

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

$\frac{165}{12}$
$\frac{175}{14}$
$\frac{175}{12}$
$\frac{165}{14}$

Correct answer and explanation

Correct answer: $\frac{175}{12}$