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Easy

Question

# 4000 members require 150 litres of water per head per day and the tank dimensions are 20m x 15m x 6m, how many days will the water of this tank last ?

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Hint:

### Volume of cuboid = l x b x h

Where l is length , b is breadth , h is height

1 litre = 0.001 m3

## The correct answer is: 3

### We have given that

Number of members = 4000

Water used per head per day = 150 litres

Tank dimensions

Length = 20 m

Breadth = 15 m

Height = 6 m

Therefore, volume of tank = l x b x h

= 20 x 15 x 6

= 1800 m^{3}

We know that 1 litre = 0.001 m^{3}

Water used per head per day = 150 litre = 150 x 0.001

= 0.150 m^{3}

Water required for 4000 members = 4000 x 0.150

= 600 m^{3}

Therefore the water will last for days = Volume of tank / water required per day

= 1800 / 600

= 3

Therefore, the correct option is b) 3.

^{3}

We know that 1 litre = 0.001 m

^{3}

Water used per head per day = 150 litre = 150 x 0.001

^{3}

Water required for 4000 members = 4000 x 0.150

^{3}

Therefore the water will last for days = Volume of tank / water required per day

Therefore, the correct option is b) 3.

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