A village, having a population of 4000, requires 150 litres of water p

1.	A village, having a population of 4000, requires 150 litres of water per head per day. It has a tank measuring 20m × 15m × 6m. For how many days will the water of this tank last ?
Answer» Length of cuboid water tank, l = 20 m breadth, b = 15 m height, h = 6 m Volume, V = ? Volume of water tank, V = l × b × h = 20 × 15 × 6 = 1800 m³ . 1m³ = 1000 litres ∴ 1800m³ = 1800 x 1000 = 1800000 litres. Water required daily per man= 150 litres ∴ Quantity of water required for 4000 men? = 4000 × 150 = 600000 litres. Quantity of water for 1 day = 600000 Number of days for consuming 1800000 litres … ? … = \(\frac{1800000}{600000}\) = 3 Days.

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

Answer»

Length of cuboid water tank, l = 20 m

breadth, b = 15 m

height, h = 6 m

Volume, V = ?

Volume of water tank, V = l × b × h

= 20 × 15 × 6

= 1800 m³ .

1m³ = 1000 litres

∴ 1800m³ = 1800 x 1000 = 1800000 litres.

Water required daily per man= 150 litres

∴ Quantity of water required for 4000 men?

= 4000 × 150 = 600000 litres.

Quantity of water for 1 day = 600000

Number of days for consuming 1800000 litres … ? …

= \(\frac{1800000}{600000}\)

= 3 Days.