The ratio of numbers is 4:5 and their H.C.F is 4. Their L.C.M is:  Select.
A) 80 B) 16 C) 24 D) 48 E) 98
Let the numbers be 4x and 5x.   Then their H.C.F = x. So, x = 4.   So, the numbers are 16 and 20.   L.C.M of 16 and 20 = 80.   80NSWER:80
<result>A</result>
The ratio of numbers is 4:5 and their H.C.F is 4. Their L.C.M is: