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Railways PYQCBT 1 2016

RRB NTPC · Question 72

The HCF and LCM of two numbers are 19 and 342 respectively, if dividing one number by 2 gives the quotient 19, find the second number. A. 133 B. 171 C. 198 D. 114

  1. A

  2. B

  3. C

  4. D

Show answer & explanation

Answer: (B) B

Explanation

One number ÷ 2 gives 19, so it is 38. The other = HCF × LCM ÷ 38 = 19 × 342/38 = 171.