Question

At a football stadium, 20% of the fans in attendance were teenagers. If there were 40 teenagers at the football stadium, what was the total number of people at the stadium?

Answer 1

Let the total number of people at the stadium be represented by \( x \).

According to the problem, 20% of the fans in attendance are teenagers. This can be expressed mathematically as:

\[
0.2x = 40
\]

To find \( x \), we need to solve the equation. We do this by dividing both sides by 0.2:

\[
x = \frac{40}{0.2}
\]

Calculating the right side:

\[
x = 40 \div 0.2 = 40 \times 5 = 200
\]

Therefore, the total number of people at the stadium is

\[
\boxed{200}
\]