A car moves at `80km` in the first half of total time of motion and at `40km` in the later half. Its average speed is

Options

A. `60km//h`
B. `30km//h`
C. `120km//h`
D. none of these

Explanation

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

### Step 1: Understand the problem
We know that a car travels 80 km in the first half of the total time and 40 km in the second half of the total time. We need to calculate the average speed of the car over the entire journey.

### Step 2: Define the variables
Let:
- \( T \) = total time of motion
...