Three numbers are in the ratio 3:4:5 and their L.C.M. is 6000. Their H.C.F is?  Choose the correct choice from the following answers:  A) 20  B) 30  C) 40  D) 50  E) 100
Let the numbers be 3x,4x and 5x   their L.C.M. = 60x   60x = 6000   x = 100   The numbers are 3*100 , 4*100 , 5*100   Hence required H.C.F. = 100   Answer is 100
<result>E</result>
Three numbers are in the ratio 3:4:5 and their L.C.M. is 6000. Their H.C.F is?