- A3 hours
- B4.8 hours
- C4 hours
- D3.5 hours
Step-by-Step Solution
Use the downstream speed: 48 ÷ 16 = 3 hours. (4.8 h wrongly uses the upstream speed.)
Answer: A) 3 hours
Upstream speed 10 km/h; downstream speed 16 km/h. How long does the boat need to go 48 km downstream?
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