Question

The sum of a two digit number and the number obtained by reversing the order of its digit is 121.If units and ten's digit of the number are x and y respectively,then write the linear equation representing the above statement.

Answer 1

Number:10y+x reverse:10x+y Acc to ques; 10y+x+10x+y=121 11x+11y=121 X+y=11(dividing 11 on both the side)

Answer 2

Units digit - x
Tens digit - y
For first number, 10y + x
For second number, 10x + y
Now its given that,
10y + x + 10x + y = 121
11x + 11y = 121