Volleyball 49041

The volleyball costs 20e. The 8 + 1 free event is in the wholesale sporting goods store. How many euros will the section pay if they order 39 balls in this store?

Correct answer:

x =  700 Eur

Step-by-step explanation:

$$\begin{gathered} n=39 \\ a=n/8=39/8=\frac{39}{8}=4.875 \\ b=\lfloor a\rfloor =\lfloor 4.875\rfloor =4 \\ z=n-b\cdot 8=39-4\cdot 8=7 \\ 39=4\cdot 8+7 \\ x=20\cdot (n-b)=20\cdot (39-4)=700\text{Eur} \end{gathered}$$

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