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

To determine how many tanks of fuel are needed to drive 1500 km, follow these steps:

1. **Calculate the fuel usage for 1500 km**:
   Since the car uses 9 litres per 100 km, for 1500 km:
   
   \[
   \text{Fuel required} = \frac{1500 \text{ km}}{100 \text{ km}} \times 9 \text{ litres} = 15 \times 9 = 135 \text{ litres}.
   \]

2. **Determine how many full tanks are needed**:
   The car's fuel tank holds 68 litres. Therefore, the number of tanks required is:
   
   \[
   \text{Number of tanks} = \frac{135 \text{ litres}}{68 \text{ litres/tank}} \approx 1.99 \text{ tanks}.
   \]

Thus, you will need approximately 2 full tanks of fuel to drive 1500 km.

Would you like more details or further clarification?

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Here are 5 related questions for further practice:
1. How much fuel will be left after driving 1500 km with 2 full tanks?
2. If the fuel efficiency decreases to 10 litres/100 km, how many tanks will you need?
3. How far can you drive on 1.5 tanks of fuel with the same efficiency?
4. What is the cost of driving 1500 km if fuel costs $1.50 per litre?
5. How much fuel is required to drive 2000 km with the same efficiency?

**Tip**: Always round up when calculating the number of tanks, as you'll need a full tank to start even if a small amount remains.

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 required to drive 1500 km with a fuel efficiency of 9 litres per 100 km. This solution involves multiplication and division to determine the total fuel required and the number of full tanks. Perfect for students in Grades 6-8.

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