Question

The difference of two nos. is


$\frac{1}{9}$
of their sum. Their sum is 45.Find their LCM​

Answer 1

Let’s see:

You’ve given that a+b=45

Also, a-b=5

Now by adding these two equations, we get 2a=50 => a=25

Putting a=25 in either of the two initial equations gives b=20.

Now, the question asks you to find their LCM.

Using prime factorization,

25= 5*5

20=2*2*5

LCM(20,25)= 5*5*2*2= 100

Therefore, the LCM is 100.

Hope this helped.

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Answer 2

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