Question

The total quantity of water contained in two vessels was 16 litres. When 3 litres of water was poured from one vessel to the other vessel, both the vessels were found containing equal quantities of water. Then what was the difference between the quantities of water contained in the two vessels initially?
1. 4
2. 5
3. 6
4. 7

Answer 1

Correct Answer - Option 3 : 6

Given:

The total quantity of water = 16 litres

3 litres of water was poured from one vessel to the other vessel, both the vessels were found containing equal quantities of water

Calculation

Let the quantity of water in two vessels be 'x' and 'y' respectively

So, x + y = 16

When 3 litres if poured from one vessel to the other we get,

 x - 3 = y + 3 (since 3 is removed from x and added to y, also given that they are equal)

⇒ x - y = 6

∴ Difference between the quantities of water in litres = 6