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A boatman rows his boat 35 …

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A boatman rows his boat 35 km upstream and 55 km down- x +2y 5 and 3x + ky 15 0 has a unique solution. 4x +20y +k 0 represent coincident lines? stream in 12 hours. He can row 30 km. upstream and 44 km downstream in 10 hours. Find the speed of the stream and that of the boat in still water. Hence find the total time taken by the boat man to row 50 cm upstream and 77 km downstream.

Posted by Shobhit Parmar 7 years, 2 months ago

CBSE > Class 10 > Mathematics

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Posted by Hari Anand 6 months, 1 week ago

CBSE > Class 10 > Mathematics