A motor boat whose speed is 18 km/h m still water takes 1 hour more to go 24 km upstream than to return downstream to the same spot. Find the speed of the stream.

Explanation

To solve the problem, we need to find the speed of the stream (let's denote it as \( x \) km/h). The speed of the boat in still water is given as 18 km/h, and the distance traveled upstream and downstream is 24 km.

### Step-by-Step Solution:

1. **Define the Speeds:**
- Speed of the boat in still water = 18 km/h
- Speed of the stream = \( x \) km/h
- Speed of the boat upstream = Speed of the boat - Speed of the stream = \( 18 - x \) km/h
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