- A2 hours
- B1.5 hours
- C2.5 hours
- D1.33 hours
Step-by-Step Solution
Boat = 5s, so downstream = 6s = 24 ⇒ s = 4, boat = 20. Upstream = 16 km/h. Time = 32 ÷ 16 = 2 hours.
Answer: A) 2 hours
A motorboat is five times as fast in still water as the current. It goes 48 km downstream in 2 hours. How long will 32 km upstream take?
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