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Railways PYQCBT 1 2016

RRB NTPC · Question 79

If Mayank doubles the selling price of an item, the profit becomes 4 times. Find the original profit percent (before increasing the selling price) A. 50% B. 100% C. 125% D. 25%

  1. A

  2. B

  3. C

  4. D

Show answer & explanation

Answer: (A) A

Explanation

Let CP = C and profit = p. Doubling SP gives 2(C + p) − C = 4p, so C = 2p. The original profit percent = p/C × 100 = 50%.