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Railways PYQCBT 1 2016

RRB NTPC · Question 58

Find the HCF of 1.43, 1.87 and 20.9. A. 11 B. 1 C.0.11 D. 110

  1. A

  2. B

  3. C

  4. D

Show answer & explanation

Answer: (C) C

Explanation

Multiply by 100: 143 = 11 × 13, 187 = 11 × 17 and 2090 = 11 × 190, so their HCF is 11. Dividing back by 100, the HCF of 1.43, 1.87 and 20.9 is 0.11.