Gardeners needed

Five equally skilled gardeners mowed one-third of the park in 12 hours. How many gardeners need to be called to mow the rest of the park in 8 hours?

Final Answer:

n =  10

Step-by-step explanation:

$$\begin{gathered} p=12\cdot 5\cdot 3=180 \\ 8\cdot (n+5)=\frac{2}{3}\cdot p \\ 8\cdot (n+5)=\frac{2}{3}\cdot 180 \\ 8\cdot (n+5)=2/3\cdot 180 \\ 24n=240 \\ n=\frac{240}{24}=10 \\ n=10 \end{gathered}$$

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