On decreasing the price of T.V. sets by 30 % its sale is increased by 20 %. What is the effect on the revenue received by the shopkeeper?
Q1. On decreasing the price of T.V. sets by 30 % its sale is increased by 20 %. What is the effect on the revenue received by the shopkeeper?
Answer: 16 % decrease
Explanation: New revenue = 0.70 × 1.20 = 0.84 of original, representing a 16% decrease.