Question

If the sum of two consecutive odd integers is $20$, find the numbers

Answer 1

Let two consecutive odd integers be $x$ and $x+2$
Given, their sum is $20$.
$\Rightarrow x+x+2=20$
$\Rightarrow 2x=20-2=18$
$\Rightarrow x=9$

Therefore, other number is $x+2=9+2=11$.
Thus, the numbers are $9,11$.