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Grade 10Trigonometry

A motorboat can travel 30 km up stream and 28 km downstream in7 hours. It can travel 21 km up stream and return in 5 hours.Find the speed of boat in still water and the speed of the stream

Profile image of Ranjan kumar
6 Years agoGrade 10
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1 Answer

Profile image of Saurabh Koranglekar
6 Years ago
Dear student

Its effective upstream speed is 21/5 = 4.2

By that it can not complete first condition as it requires 7 hrs to go upstream alone

Kindly check and repost correct question

Regards

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