Class 9.C

The professor collects money in the 9 C class for a school trip. Two-thirds of the collected amount was from girls, and one-fourth was from boys. The rest of 410 CZK went from the class fund. How much will the school trip cost in total?

Final Answer:

x =  4920 Kč

Step-by-step explanation:

$$\begin{gathered} \frac{2}{3}\cdot x+\frac{1}{4}\cdot x+410=x \\ 2/3\cdot x+1/4\cdot x+410=x \\ x=4920=4920\text{Kc} \end{gathered}$$

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