The boat and the raft are sailing along the river towards each other. The distance between them is 9 km.
| January 5, 2021 | education
The boat and the raft are sailing along the river towards each other. The distance between them is 9 km. In 0.5 hours the boat and the raft meet. The boat is sailing at a speed of 15 km / h. What is the speed of the river and the boat’s own speed?
River flow speed = x
1) (15 + x) * 0.5 = 9
15 + x = 18
x = 18-15
x = 3 (km / h) river speed
2) 15 + 3 = 18 (km / h) boat speed
Answer: 3 km / h 18 km / h
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