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 units and ten's place are "x' and 'y respectively then write the lineear equation in two variable representing the above statement
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Answer 1

Answer:

10y+x.

Number obtained by reversing the digits =10x+y

Now according to the question-

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

11x+11y=121

⇒x+y= 11

121/11

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

Answer 2

Answer:

The number is 10y+x.

Number obtained by reversing the digits =10x+y

Now according to the question-

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

11x+11y=121

⇒x+y= 121/11 =11

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