Question 1
A boat travels 62 km downstream in 2.3 hours and upstream in 3.0 hours. The stream speed is 3 km/h. Find the boat's speed in still water.
Step-by-step:
1. Let boat speed = x km/h, stream speed = 3 km/h
2. Downstream: 62/(x + 3) = 2.3
3. Upstream: 62/(x - 3) = 3.0
4. Solving gives x = 24 km/h
1. Let boat speed = x km/h, stream speed = 3 km/h
2. Downstream: 62/(x + 3) = 2.3
3. Upstream: 62/(x - 3) = 3.0
4. Solving gives x = 24 km/h