A village, having a population of 4000, requires 150 litres of water per head per day. It has a tank measuring 20 m×15 m×6 m. For how many days will the water of this tank last?


Length of the tank, l = 20 m

The breadth of the tank,b= 15m

Height of tank, h = 6 m

Total population of a village = 4000

Consumption of the water per head per day = 150 litres

Find out

We have to find for how many days will the water of this tank last


We know that Formula for volume of cuboid = l×b×h

The volume of the tank will be


Capacity of the tank=1800×1000litres=1800000litres

Let the water in this tank last for d days.

Water consumed by all people in d days = Capacity of the tank.

600000 d =1800000

d = 3


Therefore, the water in this tank will last for 3 days.

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