Suman purchased 25 liters of milk at ₹45 per liter and another 15 liters of milk at ₹50 per liter. She combined both quantities a…

Question

Suman purchased 25 liters of milk at ₹45 per liter and another 15 liters of milk at ₹50 per liter. She combined both quantities and then sold the entire mixture at ₹48 per liter. What was her total profit or loss?

1. A. Loss of ₹45
2. B. Profit of ₹45 (Correct answer)
3. C. Profit of ₹90
4. D. Loss of ₹90

Correct Answer

Option B — Profit of ₹45

Detailed Solution & Explanation

The correct answer is Profit of ₹45.

Key Points

• Cost = 25 × 45 + 15 × 50 = 1125 + 750 = ₹1,875 for 40 litres.
• Selling all 40 litres at ₹48 gives 40 × 48 = ₹1,920.
• Profit = 1,920 − 1,875 = ₹45.
• Blend problems: total the cost of each portion, total the revenue of the whole mixture, and subtract — the average selling price only matters through the total quantity.