A truck 2

A truck leaves home with building materials and makes a return trip every six days. To deliver all the materials, you need eight truck trips every month.
How many trucks do you need?

Correct result:

n =  2

Solution:

$$\begin{gathered} 8=30\mathrm{/}6\cdot x \\ 30x=48 \\ x={\displaystyle \frac{8}{5}}=1.6 \\ n=[x]=[1.6]=2 \end{gathered}$$

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