Question

After receiving two successive raises. Hursh's salary became equal to $\frac{15}{8}$ times of his initial salary. By how much percent was the salary raised the first time if the second raise was twice as high (in percent) as the first?

• A. 15%
• B. 20%
• C. 25%
• D. 30%

Answer 1

The correct option is C 25%

Let the initial salary be 'i' and raise for the first time be x %.
Then, i*(1+x/100)*(1+2x/100) = (15/8)* i
Solving the above equation, we get x = 25 %