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SSC Selection Post 2022 PYQ — Question 51

SSC Selection Post - Graduation Level - 2 Aug 2022 - Shift 3 • Quantitative Aptitude • Q51

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Which of the following is a pair of co-primes?

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Correct answer: C

Explanation

The correct answer is option 3 I.e. (25, 31).

HCF (25, 31) = 1

Since the HCF is 1, (25, 31) are co-primes.