Calculate the cost of petrol needed for the return trip to Mogwadi, assuming the distance is 18 km one way and the fuel consumption rate is 8 litres per 100 km.

Here are the answers to the questions:

3.3.1 Calculate the cost of petrol needed for the return trip to Mogwadi.

• Assumption: The distance to Mogwadi is 18 km one way, making the return trip 36 km.

Step 1: Calculate the total fuel needed for the return trip.

$$\text{Fuel needed} = \frac{\text{Distance}}{100 \text{ km}} \times \text{Fuel consumption rate}$$ $$\text{Fuel needed} = \frac{36 \text{ km}}{100 \text{ km}} \times 8 \text{ litres}$$ $$$$