Railways PYQCBT 1 2016

RRB NTPC · Question 68

A shopkeeper marks the price of an article at Rs. 320. Find the cost price if after allowing a discount of 10%, he still gains 20% on the cost price. A. Rs. 240 B. Rs. 280 C. Rs. 300 D. Rs. 264

  1. A

  2. C

  3. B

  4. D

Show answer & explanation

Answer: (A) A

Explanation

Selling price after a 10% discount on Rs 320 = 320 × 0.9 = Rs 288. This gives a 20% gain, so CP × 1.2 = 288 and CP = Rs 240.