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Yuvraagi Yashodhra

· started a discussion

· 1 Months ago

wrong answer in solution (Question:948117.0)

the correct answer should be 4.5

Question:

Samuel takes 6 hours to row up the stream from A to B and returns to A in 3 hours. Find his average speed? 

Options:
A)

3.6 hours 

B)

3.75 hours

C)

4 hours

D)

4.50 hours 

E)

None of these

Solution:

Ans: (c)

If tu, td and ts be the upstream time, downstream time and time taken on still water to travel the same distance,

then ts =  2tutdtu+ td=2×3×63+6=4    hours.

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
We have done the required changes to the question.

Regards
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