Question

The difference of two numbers is 21, the larger number is x, then smaller number is

• A. 21+x
• B. 21-x
• C. x-21
• D. -x-21

Answer 1

The correct option is C x-21

Let 2 number be $x$ and $y$.

So larger number be $x$.

Given difference of 2 numbers is 21 i.e larger number minus smaller number is $21$ $⟹x-y=21$

So the smaller number $y$ is given as $x-21$