Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F. is
30
40
60
120
Three number are in the ratio of 3 : 4 : 5 and their L.C.M. is 2400. What is their H.C.F?
The ratio of two numbers is 3 : 4 and their H.C.F. is 4. Their L.C.M. is _____.