A boat running down stream covers a distance of 16 km in 2 hours while for covering the same distance upstream it takes 4 hours. What is the speed of the boat in still water ?
Correct Answer: Description for Correct answer:
Rate upstream
= \( \Large \frac{16}{2} kmph = 8 kmph \)
Rate downstream = \( \Large \frac{16}{4} \)
= 4 kmph
\( \Large \therefore \) Rate in still water
= \( \Large \frac{1}{2} (8 + 4) kmph = 6 kmph \)
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