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

Given: volume of reservoir = 108 m³
Rate of pouring water into cuboidal reservoir = 60 liters/minute
= 60/100m³/minute [∵1l=1/100 m³]
= 60×60/1000 m³/hour
∴ 1 m³ water filled in reservoir will take = 1000x60x60 hours
∴ 108 m³ water filled in reservoir will take = 108/1000/60×60 hours = 30 hours
It will take 30 hours to fill the reservoir.

Class 8 Maths Chapter 11 Exercise 11.4 Solution in Video

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