Bird houses

Lucy is in charge of a nature camp this summer. She will be making birdhouses with her campers. She has 5 boards that are each a meter long. Each birdhouse requires 1/4 meter of wood. How many birdhouses can she make out of her wood?

Correct answer:

n =  20

Step-by-step explanation:

$$\begin{gathered} a=1\text{m} \\ b=\frac{1}{4}=0.25\text{m} \\ n=5\cdot a/b=5\cdot 1/\frac{1}{4}=20 \end{gathered}$$

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