Question

The sum of a two digit number and the number obtained by reversing the order of its
digits is 121. If the digits in unit's and ten's place are 'x'and 'y'respectively.


Juz give the good explanation​

Answer 1

Given units digit is x and tens digit is y

Hence the two digit number = 10y + x

Number obtained by reversing the digits = 10x + y

Given that sum of a two digit number and the number obtained by reversing the order of its digits is 121.

Then (10y+x)+(10x+y)=121

⇒10y+x+10x+y=121

⇒11x+11y=121

⇒x+y=11

Thus the required linear equation is x + y = 11.

Answer 2

Answer:

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