Question

If a certain number when decreased by $21$ becomes $81$, what is the number?

• A. 102
• B. 100
• C. 87
• D. 95

Answer 1

The correct option is A

102

Let the number be $x$.

Now,
$\Rightarrow x-21=81$
$\Rightarrow x=102$

Thus, the number is 102.