Question

question no.8 please it is urgent

Answer 1

if anyone has any query about this answer , then you can message me..and please follow me for and ask any maths question till 12th class and of IIT level also

Answer 2

Answer:

74

Step-by-step explanation:

Let the two digit number be ab (10a+b)

Given:

⇒a-b=3

When we reverse it, we get ba and when we add both of them we get 121

We need to expand them and write them in an equation

⇒$(10a+b)+(10b+a)=121$

⇒$11a+11b=121$

⇒$11(a+b)=121$

⇒$a+b=11$

By solving a+b=11 and a-b=3 we get a=7 and b=4

Hope that helps!... :)