Use some thinking to answer the following question. The H.C.F. of two numbers is 12 and their L.C.M. is 600. If one of the numbers is 480, then the other is:
Options:
(A) 11
(B) 10
(C) 8
(D) 15
(E) 12
Other number = (12 x 600)/480 = 15. So the final answer is (D).