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 the number of tanks of fuel required to drive 1500 km, follow these steps:

1. **Calculate the total fuel needed for the trip:**

   The car's fuel consumption is 9 liters per 100 km. To find out how much fuel is needed for 1500 km, use the formula:

   \[
   \text{Fuel needed} = \left( \frac{\text{Fuel consumption per 100 km} \times \text{Total distance}}{100} \right)
   \]

   Substituting the given values:

   \[
   \text{Fuel needed} = \left( \frac{9 \, \text{liters} \times 1500 \, \text{km}}{100} \right) = \frac{13500}{100} = 135 \, \text{liters}
   \]

2. **Determine how many tanks of fuel are required:**

   Each tank holds 68 liters. To find out how many tanks are needed for 135 liters, divide the total fuel needed by the tank capacity:

   \[
   \text{Number of tanks} = \frac{\text{Total fuel needed}}{\text{Tank capacity}} = \frac{135 \, \text{liters}}{68 \, \text{liters/tank}}
   \]

   \[
   \text{Number of tanks} \approx 1.985
   \]

   Since you can't use a partial tank, round up to the nearest whole number:

   \[
   \text{Number of tanks needed} = 2
   \]

Therefore, you will need **2 tanks** of fuel to drive 1500 km.

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Do you need more details or have any questions?

Here are some related questions you might find interesting:

1. How to calculate fuel efficiency in miles per gallon?
2. What are the factors affecting a car’s fuel consumption?
3. How to reduce fuel consumption on long trips?
4. How to convert liters per 100 km to miles per gallon?
5. How to plan a road trip with fuel stops?
6. What are the environmental impacts of fuel consumption?
7. How to calculate the cost of fuel for a long trip?
8. How does driving speed affect fuel consumption?

**Tip:** Planning your fuel stops in advance can save you time and prevent unexpected delays.

Learn how to calculate the number of fuel tanks needed for a 1500 km trip based on your car's fuel consumption rate and tank capacity. This problem involves arithmetic and unit conversion, focusing on division to determine the number of tanks required. Suitable for students in Grades 5-6.

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