Discussion Forum



1)

The difference of two numbers is 20% of the larger number. If the smaller number is 12, the larger one is :


A) 15

B) 16

C) 18

D) 20

E) 25

Answer:

Option A

Explanation:

Let the number be $x$.
Then, $x-12=20%$ of $x$
$\Leftrightarrow \frac{4x}{5}=12$
$\Leftrightarrow x = \left(\frac{12 \times 5}{4}\right)=15$.