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 calculate how many tanks of fuel you will use to drive 1500 km, let's break down the problem step by step:

1. **Fuel consumption per 100 km**:  
   The car uses 9 litres of petrol per 100 km.

2. **Fuel needed for 1500 km**:  
   \[
   \text{Fuel required} = \frac{9 \text{ litres}}{100 \text{ km}} \times 1500 \text{ km} = 135 \text{ litres}
   \]

3. **Tank capacity**:  
   The car's tank holds 68 litres.

4. **Number of tanks required**:  
   \[
   \text{Number of tanks} = \frac{135 \text{ litres}}{68 \text{ litres per tank}} \approx 1.99 \text{ tanks}
   \]

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

Would you like more details on any of the steps? Here are some related questions to explore further:

1. How many kilometers can you drive on a full tank?
2. What would the total fuel cost be if petrol costs $1.50 per litre?
3. How would your fuel consumption change if you reduced the usage to 8 litres per 100 km?
4. How many litres of fuel would be left in the second tank after driving 1500 km?
5. What is the maximum distance you could drive with 2 full tanks?

**Tip**: Always round up when calculating the number of fuel tanks needed, as you cannot drive on a fraction of a 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 required for a 1500 km drive when your car consumes 9 litres per 100 km and has a 68-litre tank. This guide includes step-by-step calculations, formulas, and rounding tips. Suitable for students in Grades 6-8.

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