A 25% decrease in the cost of flour enables a consumer to purchase an additional 3 kg for ₹360. What was the initial price per kg of the flour?
Show answer & explanation
Correct answer: C
Explanation
Old price : New price = 100 : 75 = 4 : 3
Increase in quantity = 4 - 3 = 1 part
1 part = 3 kg
New quantity = 4 parts = 4 × 3 = 12 kg
New price = 360/12 = ₹30 per kg
Old price = 30 × 100/75 = ₹40 per kg
Initial price of flour = ₹40 per kg