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Railways PYQCBT 1 2016

RRB NTPC · Question 26

If 5A = 6B and 6A = 4C, the ratio of B : C is: A. 4 : 3 B. 5 : 6 C. 5 : 9 D. 10 : 15

  1. D

  2. A

  3. C

  4. B

Show answer & explanation

Answer: (C) C

Explanation

From 5A = 6B, A = 6B/5; from 6A = 4C, A = 2C/3. So 6B/5 = 2C/3, giving B/C = 10/18 = 5 : 9.