Your car petrol usage is 9 litres / 100 km. Your tank holds 68 litres. How many tanks of fuel will you use to drive 1500km?

To solve this problem, we can break it down into two steps:

1. **Calculate the total amount of fuel needed to drive 1500 km** using the car's fuel consumption rate.
   \[
   \text{Fuel consumption rate} = 9 \, \text{litres} / 100 \, \text{km}
   \]
   For 1500 km:
   \[
   \text{Fuel needed} = \left(\frac{9 \, \text{litres}}{100 \, \text{km}}\right) \times 1500 \, \text{km} = 135 \, \text{litres}
   \]

2. **Calculate how many full tanks of fuel you will use**, given that the tank holds 68 litres.
   \[
   \text{Number of tanks} = \frac{135 \, \text{litres}}{68 \, \text{litres/tank}} \approx 1.99 \, \text{tanks}
   \]

Thus, you will use approximately **2 tanks of fuel** to drive 1500 km.

Would you like more details or have any questions?

Here are 5 related questions:
1. How many kilometers can you drive on one full tank?
2. If your fuel efficiency improves to 8 litres/100 km, how many tanks will you need for 1500 km?
3. How much fuel would you save if you reduced your trip to 1200 km?
4. If fuel costs $1.50 per litre, how much will it cost to drive 1500 km?
5. How would the number of tanks change if your car's tank capacity was increased to 75 litres?

**Tip:** Keeping your tires properly inflated can improve fuel efficiency.

Your car petrol usage is 9 litres / 100 km. Your tank holds 68 litres. How many tanks of fuel will you use to drive 1500 km?

Learn how to calculate the number of fuel tanks needed to drive 1500 km based on a fuel efficiency of 9 litres per 100 km and a tank capacity of 68 litres. This problem covers concepts in fuel efficiency and unit conversion, suitable for students in Grades 6-8.

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