A car covers the first half of the distance between two places at a speed of `40 kmh^(-1)` and second half at `60 kmh^(-1)` Calculate the average speed of the car.

Explanation

To find the average speed of the car that covers the first half of the distance at a speed of 40 km/h and the second half at 60 km/h, we can follow these steps:

### Step 1: Define the total distance
Let the total distance between the two places be \( D \). Therefore, the first half of the distance is \( \frac{D}{2} \) and the second half is also \( \frac{D}{2} \).

### Step 2: Calculate the time taken for each half of the distance
- **Time for the first half (T1)**:
\[
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