Question

The volume of the water in two tanks, A and B, is in the ratio of 6 : 5. The volume of water tank A is increased by 30%. By what percentage should the volume of water in tank B be increased so that both the tanks have the same volume of water?
1. 18%
2. 30%
3. 15%
4. 56%

Answer 1

Correct Answer - Option 4 : 56%

Given:

The volume ratio of A, B is 6 ∶ 5

The volume of A is increased by 30%

Calculation:

Let the volume of A, B be 60, 50

New volume of A = 60(1 + 30/100) = 78

Difference between the volumes of A, B is 78 – 50 = 28

∴ Percentage Increase in volume = 100 × 28/50 = 56%