Question

1. Which of the following pairs of numbers are co-primes ?
(i) 12, 30
(ii) 8, 21
(iii) 54, 144
(Hint: Two numbers are co-primes if their H.C.F. is 1.)​

Answer 1

the co-prime pairs are

8,21

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Answer 2

Answer:

ii) 8, 21

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