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Railways PYQCBT 1 2016

RRB NTPC · Question 96

Two numbers are in ration 2:5 and their HCF is 18. Their LCM is. A. 180 B. 36 C. 90 D. 188

  1. B

  2. D

  3. A

  4. C

Show answer & explanation

Answer: (C) A

Explanation

The numbers are 2 × 18 = 36 and 5 × 18 = 90. LCM = 18 × 2 × 5 = 180.