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- A boat running downstream covers a distance of 20 km in 2 hours while for covering the same distance upstream, it takes 5 hours.
Question 1:
A boat running downstream covers a distance of 20 km in 2 hours while for covering the same distance upstream, it takes 5 hours. What is the speed of the boat in still water? A. 4 km / hr
B. 7 km / hr
Feedback Rate downstream = (20/2) kmph = 10 kmph;
Rate upstream = (20/5) kmph = 4 kmph
Speed in still water = 1/2 (10 + 4) kmph = 7 kmph
Rate upstream = (20/5) kmph = 4 kmph
Speed in still water = 1/2 (10 + 4) kmph = 7 kmph
C. 8 km / hr
D. Data Inadequate
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