An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour. At the same tune, another aeroplane leaves the same airport and flies due west at a speed of 1200 km per hour. How far apart will be the two planes after `1 1/2` hours ?

Explanation

To find the distance between the two aeroplanes after 1.5 hours, we can follow these steps:

### Step 1: Calculate the distance traveled by the first aeroplane (flying north).
- The speed of the first aeroplane is 1000 km/h.
- Time traveled = 1.5 hours.
- Distance = Speed × Time = 1000 km/h × 1.5 h = 1500 km.

### Step 2: Calculate the distance traveled by the second aeroplane (flying west).
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