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1. |
The L.C.M. of two numbers is 20 times their H.C.F. The sum of H.C.F. and L.C.M. is 2520. If one of the number is 480, the other number is : |
A. | 400 |
B. | 480 |
C. | 520 |
D. | 600 |
Answer» E. | |