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Railways PYQCBT 2 2017

RRB NTPC · Question 17

A shopkeeper cheats to the extent of 15% while buying and selling fruits, by using tampered weights. His total gain, in percentage, is:

  1. 32.75

  2. 35.29

  3. 32

  4. 32.5

Show answer & explanation

Answer: (B) 35.29

Explanation

He receives 1150 g when buying 1 kg and gives only 850 g when selling 1 kg. His money grows by a factor of 1150/850 ≈ 1.3529, a gain of about 35.29%.