1. A boat covers 32 km upstream and 36 km downstream in 7 hrs. Also, it covers 40 km upstream and 48 km downstream in 9 hrs. Finf the spead of the boat in still water and that of the stream.

Asked by CHIDAMBAR | 23rd May, 2018, 07:07: PM

Expert Answer:

Answered by Yasmeen Khan | 24th May, 2018, 11:18: AM

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