A plane flies 1400 kilometers in 2 hours 20 minutes. Caluclate the average speed, in km/h, of the plane.

To find the average speed of the plane, we use the formula:

\[
\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}
\]

### Given Data
- **Total Distance** = 1400 km
- **Total Time** = 2 hours 20 minutes

#### Step 1: Convert Time to Hours
2 hours 20 minutes can be converted to hours by recognizing that 20 minutes is \( \frac{20}{60} \) hours:
\[
2 + \frac{20}{60} = 2 + \frac{1}{3} = 2.333 \text{ hours}
\]

#### Step 2: Calculate Average Speed
Substitute the values into the formula:
\[
\text{Average Speed} = \frac{1400 \text{ km}}{2.333 \text{ hours}} \approx 600 \text{ km/h}
\]

### Answer
The average speed of the plane is approximately **600 km/h**.

Would you like further details or have any questions?

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1. What is the significance of average speed in aviation?
2. How would the calculation change if the time was given in minutes only?
3. What methods could be used to increase the average speed?
4. How does wind affect a plane's average speed?
5. Can this method be applied to other moving objects?

**Tip:** Always convert time to a single unit before calculating average speed.

A plane flies 1400 kilometers in 2 hours 20 minutes. Calculate the average speed, in km/h, of the plane.

Learn how to calculate the average speed of a plane flying 1400 kilometers in 2 hours 20 minutes. This solution walks through unit conversions and the formula for average speed, ideal for Grades 6-8 students.

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