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  9. Q351

RRB Group D (Level-1 posts) 2022 · Question 351 of 598

Which of the following pairs of numbers are co-primes?

  1. A34 and 35Correct
  2. B12 and 18
  3. C7 and 14
  4. D17 and 170

Answer: A. 34 and 35

Explanation

Two numbers are co-prime if their only common factor is 1. The pair 34 and 35 are co-prime because they do not share any common factors except 1.

Source: RRB Group D 2022 Prev. Yr. Paper (18 Aug 2022) (Shift 2) - Prepp · reliable-secondary

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