Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 1500. What is their H.C.F.?
Answers
A) 5  B) 15  C) 25  D) 35  E) 45
Let the numbers be 3x, 4x and 5x.   Then, their L.C.M. = 60x   60x = 1500   x = 25   The numbers are (3 x 25), (4 x 25) and (5 x 25).   The H.C.F. is 25.   The answer is 25.
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Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 1500. What is their H.C.F.?