Question

the l. c. m of two number is 630 and their HCF is 9 if the sum of number is 153 their difference is.​

Answer 1

Answer:

The answer is 90and 63

Step-by-step explanation:

Now, let the two no. be a and b.

Given that:

LCM = 630

HCF = 9

a+b =153

We know that:

LCM × HCF = a×b

a × b = 630×9

ab = 5670

Given that:

a+b = 153

We can write it as:

a = 153-b

Putting the value of a in eq (i), we get:

(153-b)(b) = 5670

153b-b² = 5670

-b²+153b-5670 = 0

After factorisation, we get the answer.