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

To calculate how many tanks of fuel you'll need to drive 1500 km, we follow these steps:

1. **Find the total fuel required**:
   - Fuel consumption rate is 9 litres per 100 km.
   - For 1500 km:  
     \[
     \frac{9 \text{ litres}}{100 \text{ km}} \times 1500 \text{ km} = 135 \text{ litres}
     \]

2. **Determine the number of full tanks**:
   - Each tank holds 68 litres.
   - So, the number of tanks needed is:  
     \[
     \frac{135 \text{ litres}}{68 \text{ litres/tank}} \approx 1.985 \text{ tanks}
     \]

   This means you'll need approximately **2 tanks** of fuel to drive 1500 km.

Would you like more details on any part of this calculation?

Here are some related questions for practice:
1. How much petrol would you need to drive 500 km?
2. How far can you drive with half a tank of petrol?
3. What would happen if the fuel efficiency changed to 7 litres/100 km?
4. If you had a 55-litre tank, how many tanks would you need for the same distance?
5. What if the trip distance was 2000 km?

**Tip**: Always double-check your units to avoid confusion in calculations.

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

Learn how to calculate how many tanks of fuel you'll need to drive 1500 km with a fuel consumption rate of 9 litres per 100 km and a tank capacity of 68 litres. This problem covers key concepts like ratio, unit conversion, and division. Suitable for students in Grades 6-8.

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