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1. A salesman usually makes 25% profit on every radio he sells. During a sale, he reduces his profit margin to 20%, while his sales increase by 10%. What is the radio of his new profit to his usual profit?
- A. 10:25
- B. 10:25
- C. 10:25
- D. 10:25
Answer: Option C
Explanation:
New sale = 110% of usual sale
New profit = 20% of 110% = 22%
New profit : Usual profit = 22% : 25% = 22 : 25
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