Final answer:
You could purchase approximately 9.20 liters of oil with $30.
Step-by-step explanation:
To find the number of liters of oil that can be purchased with $30, we can set up a proportion using the given information:
50 liters / $163 = x liters / $30
Cross-multiplying, we get:
50 * $30 = x * $163
Thus, x ≈ 9.20 liters.
Therefore, with $30, you could purchase approximately 9.20 liters of oil.