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, let's calculate step-by-step:

1. **Petrol usage per 100 km**: 9 litres.
2. **Total distance to drive**: 1500 km.
3. **Tank capacity**: 68 litres.

### Step 1: Calculate the total petrol needed for 1500 km
Since the car uses 9 litres for every 100 km, for 1500 km:
\[
\text{Total petrol needed} = \frac{9 \, \text{litres}}{100 \, \text{km}} \times 1500 \, \text{km} = 135 \, \text{litres}.
\]

### Step 2: Calculate the number of tanks required
Now, to find out how many full tanks of fuel you'll need:
\[
\text{Number of tanks} = \frac{135 \, \text{litres}}{68 \, \text{litres/tank}} \approx 1.99.
\]
So, you will need about **2 tanks of fuel** to drive 1500 km.

Would you like further clarification?

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Here are some related questions for further practice:

1. How much fuel will be left after driving 1500 km?
2. If your fuel efficiency changes to 8 litres/100 km, how many tanks would you need?
3. How far can you drive on 1 full tank of 68 litres?
4. How much petrol would you need for a 2000 km trip with the same efficiency?
5. If petrol costs $1.50 per litre, how much would the fuel cost for a 1500 km journey?

**Tip**: Always double-check the units in your calculations to ensure consistency!

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 determine the number of fuel tanks required to drive 1500 km with a car that consumes 9 litres per 100 km and has a 68-litre tank. Understand the step-by-step calculation involving unit conversion and division, suitable for students in Grades 6-8.

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