The odometer of a car reads 1800 km at the start of a trip and 2400 km to the end of the trip. If the trip took 10 h. Calculate the average speed of the car in km `h^(-1)`

Options

A. 30
B. 40
C. 50
D. 60

Explanation

To calculate the average speed of the car, we can follow these steps:

### Step 1: Determine the total distance traveled
The initial reading on the odometer is 1800 km, and the final reading is 2400 km. To find the total distance traveled, we subtract the initial reading from the final reading.

\[ \text{Total Distance} = \text{Final Reading} - \text{Initial Reading} = 2400 \, \text{km} - 1800 \, \text{km} = 600 \, \text{km} \]

### Step 2: Identify the total time taken for the trip
The problem states that the trip took 10 hours.

\[ \text{Total Time} = 10 \, \text{hours} \]

### Step 3: Calculate the average speed
Average speed is calculated using the formula:

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

Substituting the values we found:

\[ \text{Average Speed} = \frac{600 \, \text{km}}{10 \, \text{hours}} = 60 \, \text{km/h} \]

### Final Answer
The average speed of the car is **60 km/h**.

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