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Railways PYQCBT 1 2016

RRB NTPC · Question 21

The LCM of two numbers is 66. The numbers are in the ratio 2 : 3. The sum of the numbers is

  1. 60

  2. 55

  3. 50

  4. 65

Show answer & explanation

Answer: (B) 55

Explanation

Numbers in the ratio 2 : 3 are 2k and 3k, with LCM 6k = 66, so k = 11. The numbers are 22 and 33, and their sum is 55.