A doll is sold for Rs. 220. What was the cost of the doll if the rate of profit was 10% of the cost?
Q1. A doll is sold for Rs. 220. What was the cost of the doll if the rate of profit was 10% of the cost?
Answer: Rs. 200
Explanation: SP = CP × 1.10 = 220 → CP = 220/1.10 = Rs.200.