In a journey, a car travels at the rate of `20 km h^(-1)` for minutes and then at `30 km h^(-1)` for `20 minutes`. Find (i) the total distance traveled by the car and (ii) the average speed of the car during the journey.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Convert Time from Minutes to Hours
The car travels for two different durations:
- The first duration is 10 minutes.
- The second duration is 20 minutes.

To convert these times into hours:
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