Barter

There is exchange trade on the market. We know that for two sheepskins, we get three goat skins. We also know that we get four goat skins for six rabbit skins. How many rabbit skins do we get for four sheepskins?

Correct answer:

x =  9

Step-by-step explanation:

$$\begin{gathered} 2o=3k \\ 6z=4k \\ 4o=3\cdot 2k \\ 4o=6k \\ 6\cdot \frac{6}{4}z=4\cdot \frac{6}{4}k \\ x=6\cdot \frac{6}{4}=\frac{6\cdot 6}{4}=\frac{36}{4}=9 \end{gathered}$$

Try another example