Question

Water is pouring into reserviour at the rate of 60 litres per minute.If the volume of the reservoir is 108 cubicmeter, find the number of hours it will takes to fill the reservoir.​

Answer 1

Given :

Rate of flowing of water into the reservoir is 60 litres per minute,

and volume of the reservoir is 108 cm³.

Relationship:

1 m³ = 1 ml

1 litre = 1000 cm³

1 m³ = 1000000 cm³ = 1000 litres

If,

1 m³ = 1000 litres

so,

capacity of reservoir = 108 × 1000 = 108000 litres

.

Water is being poured at rate of 60 litre per minute.

= (60 × 60) = 3600 litre per hour

Number of hours water will take to fill the reservoir

= 10800/3600  = 30 hours

Hence,

it will take 30 hours to fill the reservoir.