Multiple choice

Manish bought 25 kg of rice at Rs.32 per kg and 15 kg of rice at Rs.36 per kg. What profit did he get when he mixed the two varieties together and sold it at Rs.40.20 per kg?

  1. 25%

  2. 40%

  3. 30%

  4. 20%
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Total cost = (25 × 32) + (15 × 36) = 800 + 540 = Rs.1340 for 40 kg rice. Cost price per kg = 1340/40 = Rs.33.50 per kg. Selling price = Rs.40.20 per kg. Profit per kg = 40.20 - 33.50 = Rs.6.70. Profit percent = (6.70/33.50) × 100 = 20%. Option D is correct. At 20% profit on Rs.33.50, the selling price is 33.50 × 1.20 = Rs.40.20, which matches.

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