## 167. Math Puzzle $4 / 79$

The workers of a company's press shop conducted an initiative shift. 50 tons of press material was the result, exceeding their plan by eight tons. What was the percentage of plan fulfillment?
Since 8 t more than planned were produced during the production of $50 \mathrm{t}$ of press material, the planned amount (100 percent) was $50 \mathrm{t}-8 \mathrm{t}=42 \mathrm{t}$.

Using a ratio equation, the percentage of plan fulfillment can be calculated:

$$
\frac{x}{100}=\frac{50 \mathrm{t}}{42 \mathrm{t}} \quad, \quad x=119
$$

The plan was fulfilled at 119 percent in this special shift.