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Railways PYQCBT 1 2016

RRB NTPC · Question 56

A trader bought a bag of 40 kg of basmati rice at Rs. 125 per kg and another bag of 60 kg at Rs. 150 per kg. He sold the entire stock at a profit of 20%. find the selling price per kg. A. Rs. 152 B. Rs. 158 C. Rs. 168 D. Rs. 172

  1. C

  2. A

  3. B

  4. D

Show answer & explanation

Answer: (A) C

Explanation

Total cost = 40 × 125 + 60 × 150 = 5,000 + 9,000 = Rs 14,000 for 100 kg, i.e. Rs 140 per kg. For a 20% profit, SP = 140 × 1.2 = Rs 168 per kg.