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 find how many tanks of fuel you will use to drive 1500 km, follow these steps:

1. **Find how much fuel is used per kilometer**:
   Your car uses 9 litres for every 100 kilometers. This means for 1 kilometer, the car will use:
   \[
   \frac{9 \, \text{litres}}{100 \, \text{km}} = 0.09 \, \text{litres/km}
   \]

2. **Calculate the total fuel needed for 1500 km**:
   Multiply the fuel usage per kilometer by the total distance:
   \[
   1500 \, \text{km} \times 0.09 \, \text{litres/km} = 135 \, \text{litres}
   \]
   So, you will need 135 litres of fuel to drive 1500 km.

3. **Calculate how many tanks of fuel are needed**:
   The car's tank holds 68 litres, so divide the total fuel needed by the tank capacity:
   \[
   \frac{135 \, \text{litres}}{68 \, \text{litres/tank}} = 1.99 \, \text{tanks}
   \]

Since you can't use a fraction of a tank in reality, you'll need **2 full tanks of fuel** to drive 1500 km.

Would you like more details or have any questions?

Here are 5 related questions for further practice:
1. How much fuel would you need to drive 500 km?
2. If your fuel efficiency improved to 7 litres/100 km, how many tanks would you need for 1500 km?
3. What is the maximum distance you can drive on a full tank?
4. If petrol costs $1.50 per litre, what would be the cost to drive 1500 km?
5. How many kilometers can you drive with 20 litres of petrol?

**Tip**: Always round up when calculating the number of tanks of fuel, as you can't drive on a partially filled tank!

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?

Learn how to calculate the number of fuel tanks needed for a 1500 km drive when your car uses 9 litres of petrol per 100 km. The tank holds 68 litres. This step-by-step guide uses multiplication and division to help you find the total fuel required. Suitable for Grades 6-8.

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