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Railways PYQCBT 1 2016

RRB NTPC · Question 20

The ratio of three numbers is 2 : 3 : 6 and their HCF is 45. Find the sum of these numbers. A. 405 B. 455 C. 495 D. 525

  1. B

  2. A

  3. C

  4. D

Show answer & explanation

Answer: (C) C

Explanation

The numbers are 2 × 45, 3 × 45 and 6 × 45 = 90, 135 and 270. Their sum is 11 × 45 = 495.