A boat can tarvel 36 km upstream in 5 hours. If the speed of the stream is 2.4 kmph, how much time will the boat take to cover a distance of 78 km downstream?(in hours)
A. 5 hours
B. 6.5 hours
C. 5.5 hours
D. 8 hours
Answer: Option B
A boat can travel 36 km upstream in 5 hours
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