Question

In the X class, last year there were $300$ students. This year the number decreased by $40$%. How many students are there in X grade class?

• A. $200$
• B. $180$
• C. $120$
• D. None

Answer 1

The correct option is B $180$

Let $x$ students in this year $\frac{300-x}{300}=\frac{40}{100}$
$300-x=120$, $x=180$