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A boat covers 14kms in upstream …

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A boat covers 14kms in upstream and 20kms downstream in 7hrs also it covers 22kms upstream and 34kms downstream in 10hrs .find the speed of the boat in still water and of that the stream

Posted by Stuti Worah 5 years, 1 month ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

Let, the speed of a boat in still water = x km/hr

and speed of the stream = y km/hr

→ Speed of a boat in upstream = (x - y) km/hr and

Speed of a boat in downstream = (x + y) km/hr

We know that,

Time = Distance /Speed

According to the conditions in the question, we get

4Thank You

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