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Railways PYQCBT 1 2016

RRB NTPC · Question 9

Karan purchased one dozen pens for Rs. 120/ - and sold a pack of 3 pens for Rs. 35/. What is his gain percentage?

  1. 16.67%

  2. 20%

  3. 15%

  4. 33.33%

Show answer & explanation

Answer: (A) 16.67%

Explanation

One dozen pens cost Rs 120, so CP = Rs 10 per pen. A pack of 3 sells for Rs 35, so SP = 35/3 ≈ Rs 11.67 per pen. Gain = 1.67 per pen, and gain % = (5/3)/10 × 100 = 16.67%.