Question

Water is pouring into a cuboidal reservoir at the rate of $60$ litres per minute. If the volume of reservoir is $108m^3$, find the number of hours it will take to fill the reservoir.

• A. $30hours$
• B. $3hours$
• C. $80hours$
• D. None of these

Answer 1

The correct option is A $30hours$

Volume of the reservoir
$=108m^3$
$=108\times 1000$ litres
$=108000$ litres
Since water is pourind into reservoir @ $60$ litres per minute.
$\therefore$ Time taken to fill the reservoir
$=\frac{108000}{60\times 60}hours=30hours$.