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1. A merchant sells a radio for Tk. 80 and thereby makes a profit of 25% of the cost. What is the ratio of cost to selling price?
- A. 4/5
- B. 4/5
- C. 4/5
- D. 4/5
Answer: Option A
Explanation:
at 25% profit, if cost price = 100, then sell price = 125
now, if sell price = 80, then cost price = (100*80)/125 = 64
so ratio = 64/80 = 4:5
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