A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increases by 10%. What is the ratio of his new profit to his usual profit?

A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increases by 10%. What is the ratio of his new profit to his usual profit?

A 10:25

B 11:15

C 22:25

D 20:25

Solution

Correct Answer: Option C