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Railways PYQCBT 1 2016

RRB NTPC · Question 31

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number. A. 107 B. 103 C. 105 D. 102

  1. B

  2. D

  3. A

  4. C

Show answer & explanation

Answer: (D) C

Explanation

For two numbers, HCF × LCM = product of the numbers. So the other number = (3 × 2730)/78 = 8190/78 = 105.