Question

Water is pouring into a cuboidal reservoir at the rate of 60 litres per minute. If the volume of reservoir is 108m³, find the number of hours it will take to fill the reservoir.

Answer 1

Volume of cuboidal reservoir = 108 m³ = (\(108 × 1000\)) L = 108000 L 
It is given that water is being poured at the rate of 60 L per minute. 
That is, (\(60 × 60\)) L = 3600 L per hour 
Required number of hours = \(\frac{108000}{3600} = 30\) hours 
Thus, it will take 30 hours to fill the reservoir.