Question

The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:
A.1
B.2
C.3
D.4

Answer 1

Here, HCF = 13 Let the numbers be 13x and 13y, where x and y are prime to each other. Now, 13x 13y = 2028 The opposite pairs are : (1, 12), (3, 4),

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