Problems on H.C.F and L.C.M
A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. Aft

45 minutes
46 minutes and 12 seconds
26 minutes and 18 seconds
42 minutes and 36 seconds

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Problems on H.C.F and L.C.M
The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is:

4
3
1
2

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