1.

From the numbers 2, 3, 4, 5, 6, 7, 8, 9 how many pairs of co-primes can be formed?(a) 19(b) 18(c) 20(d) 21

Answer» From the numbers 2, 3, 4, 5, 6, 7, 8, 9 how many pairs of co-primes can be formed?

(a) 19

(b) 18

(c) 20

(d) 21


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