The speed of a boat when travelling downstream is 32 kmph whereas when travelling upstream it is 28 kmph. What is the speed of the boat in still water ?

A) 27 Kmph

B) 29 Kmph

C) 31 Kmph
D) None of these

Correct answer:
D) None of these

Description for Correct answer:
Tricky Approach

Speed of the boat in still water

= \( \Large \frac{1}{2} (\ Rate \ downstream + \ Rate \ upstream ) \)

= \( \Large \frac{1}{2} (32 + 28) = 30 \ kmph \)

Please provide the error details in above question

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