A reduction of 20% in the price of rice enables a person to buy 3.5 kg more rice for Rs.385. The original price of rice per kg is?
Q1. A reduction of 20% in the price of rice enables a person to buy 3.5 kg more rice for Rs.385. The original price of rice per kg is?
Answer: Rs.27.5
Explanation: Let original price = P per kg. After 20% reduction, new price = 0.8P. Extra rice bought: 385/(0.8P) − 385/P = 3.5, which gives P = Rs. 27.5.