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Railways PYQCBT 1 2016

RRB NTPC · Question 93

25 paise, 10 paise and 5 paise coins are in the ratio of 1 : 2 : 3 in a bag. If their total value is Rs. 180, then how many coins of 10 paise will be there? A. 300 B. 400 C. 600 D. 900

  1. A

  2. B

  3. D

  4. C

Show answer & explanation

Answer: (D) C

Explanation

Let the coins be x, 2x and 3x. Value = 0.25x + 0.20x + 0.15x = 0.60x = 180, so x = 300. 10-paise coins = 2x = 600.