Multiple choice

The speed of the stream is 25 KMPH the speed of the boat downstream is 15 m/s. find the speed of the boat in Still water?

  1. 8.05

  2. 6.05

  3. 5.23

  4. 7.05

  5. 8.56
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A Correct answer
AI explanation

First, convert the speed of the stream from kmph to m/s by multiplying by 5/18, giving 25 times 5/18, which equals 125/18 m/s. Using the downstream speed formula, the speed of the boat in still water equals the downstream speed minus the stream speed, so we calculate 15 - 125/18. Finding a common denominator yields 270/18 - 125/18, resulting in 145/18 m/s, which is approximately 8.05 m/s.

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