Question

Sum of digits of a 2 digit number is 10. Sum of the number and its reverse equals 110. Represent it graphically.

Answer 1

Let x be tens digit and y be units digit.

$x+y=10$

$10x+y+10y+x=110$

$\Rightarrow 11x+11y=110$

$\Rightarrow x+y=10$