The sum of the H.C.F. and L.C.M of two numbers is 680 and the LC.M. is 84 times the H.C.F. If one of the number is 56, the other is :

The sum of the H.C.F. and L.C.M of two numbers is 680 and the LC.M. is 84 times the H.C.F. If one of the number is 56, the other is :
1). 84
2). 12
3). 8
4). 96

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