X's salary is half that of Y. If X gets a 50% rise and Y gets a 25% rise, then the percentage increase in the combined salaries of both is

A30%

B33.33% ✓ Correct

C37.5%

D75%

Correct answer: (B) 33.33%

Explanation

The combined salary rises by 33.33%.

Take Y = 100, so X = 50 and the combined salary = 150.

X rises 50%: 50 x 1.5 = 75.

Y rises 25%: 100 x 1.25 = 125.

New combined = 200, increase = 200 - 150 = 50 on 150.

50 / 150 x 100 = 33.33%.

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