Question

Subject Mathematics
Subject code:
1
Full Marks - 100
130-30
20. If the ratio of two mumbers is 3:4 and their HCF is
3. dien what is LCM?
b) 9
21. If a b' ure ordered proportional thers which one of
c) 12​

Answer 1

So I will write a short answer .

now you know product of two number = hcf of those numbers * their LCM.

now given that they are in ratio 3:4 so both numbers must be of form 3x and 4x where x Belongs to I .

Now what is there which is common between them?? Surely HCF is the highest common factor which will be cancelled while taking ratio , hence x=4 and two numbers are 12 and 16 .

so their LCM is 48.

Hope it helps.