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Railways PYQCBT 1 2016

RRB NTPC · Question 9

Ritesh bought an old bike, the bike price increases by 50% after passing through three owners. If the first and second owners get 10% and 30% respectively, then find the % profit earned by the third owner. A. 8% B. 11% C. 4.9% D. 6.9%

  1. A

  2. C

  3. D

  4. B

Show answer & explanation

Answer: (B) C

Explanation

Take the original price as 100. After the first owner's 10% profit it is 110; after the second's 30% it is 143. The final price is 150, so the third owner's profit = 7/143 × 100 ≈ 4.9%.