Question

The difference between a number and one-fifth of it is $100$. What is the number?

• A. $125$
• B. $200$
• C. $225$
• D. $300$

Answer 1

Answer: (A)

$125$

Let the number is $x$

Then one fifth of $x=$ $\frac{x}{5}$

Given in question the difference of number and one fifth of number is $100$.

$\therefore x-\frac{x}{5}=100$

$\Rightarrow 5x-x=500$

$\Rightarrow 4x=500$

$\Rightarrow x=125$