Numeracy question. 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?
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, let's break it down step by step:

### Step 1: Determine the amount of fuel needed for 1500 km
Your car uses 9 litres of petrol per 100 km. So, to find out how much fuel is needed for 1500 km, we calculate:

\[
\text{Fuel needed} = \left(\frac{9 \, \text{litres}}{100 \, \text{km}}\right) \times 1500 \, \text{km} = \frac{9 \times 1500}{100} = 135 \, \text{litres}
\]

### Step 2: Determine how many tanks are required
Your fuel tank holds 68 litres. To find out how many full tanks you will need to drive 1500 km, divide the total fuel needed by the tank capacity:

\[
\text{Number of tanks} = \frac{135 \, \text{litres}}{68 \, \text{litres per tank}} \approx 1.985 \, \text{tanks}
\]

Since you can't use a fraction of a tank, you will need **2 full tanks** of fuel to cover the 1500 km journey.

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Would you like further details or have any questions?

Here are 5 related questions for further practice:
1. How many litres would you need to travel 2000 km with the same car?
2. If your car’s fuel efficiency improved to 7 litres/100 km, how many tanks would you need for 1500 km?
3. What distance could you travel with one full tank if your car uses 10 litres/100 km?
4. How many kilometres can you drive if you fill your car with 50 litres of petrol?
5. If fuel costs $1.50 per litre, how much would it cost to drive 1500 km?

**Tip:** Always ensure you consider both the fuel efficiency and the tank size when planning long trips.

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 to drive 1500 km when your car uses 9 litres per 100 km and the tank holds 68 litres. Understand key math concepts like ratio, unit conversion, and division, with a clear step-by-step solution. Suitable for students in Grades 6-8.

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