Problems on LCM & HCF Mcqs

Q.  The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is__________?

a. 12
b. 16
c. 24
d. 48


ANSWER: See Answer
 
Let the numbers be 3x and 4x.

Then their H.C.F = x. So, x = 4.
So, the numbers are 12 and 16.
L.C.M of 12 and 16 = 48.
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