1. The problem states that Hadi's car uses 50 liters of petrol for 510 km. 2. Calculate the petrol consumption per kilometer: $$\text{Petrol per km} = \frac{50}{510} \approx 0.09804 \text{ liters per km}$$ 3. The one-way distance to be traveled is 754.8 km, so the two-way distance is: $$754.8 \times 2 = 1509.6 \text{ km}$$ 4. Calculate the total petrol needed for the two-way trip by multiplying the petrol per km by the total distance: $$0.09804 \times 1509.6 \approx 148 \text{ liters}$$ 5. Therefore, the petrol required for the two-way trip is approximately 148 liters. **Answer:** D 148