If a bus travels a distance of 30 km in 45 minutes. What will be its speed in:
`km//"s "`

Explanation

To find the speed of the bus in kilometers per second, we can follow these steps:

### Step 1: Identify the given values
- Distance traveled by the bus = 30 km
- Time taken = 45 minutes

### Step 2: Convert time from minutes to seconds
Since we need the speed in kilometers per second, we must convert the time from minutes to seconds.
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