Question

A pump fills 1,200 litres of water in a tank, after which it remains 60% empty. How much more water should go in to fill the tank to the brim?
1. 1,800 litre
2. 1,200 litre
3. 3,000 litre
4. 2,000 litre

Answer 1

Correct Answer - Option 1 : 1,800 litre

Given:

A pump fills 1200 litres of water in a tank, after which it remains 60% empty.

Calculation:

According to the question,

40% = 1200

⇒ 1% = 300

Total capacity of tank = 100% = 30000 litres

More water that should be filled = 3000 - 1200 = 1800 litres

∴ Quantity of water that should be filled in tank is 1800 litres​.