Multiple choice

A motor boat going down stream crosses a float at a point A. 60 minutes later it turned back and after some time passed the float at a distance of 12 km from the point A. The velocity of stream

  1. $8 kmph$
  2. $3 kmph$
  3. $6 kmph$
  4. $10 kmph$
Reveal answer Fill a bubble to check yourself
B Correct answer
AI explanation

The float moves with the stream velocity, and since the total time the boat spends moving away from and returning to the float is 120 minutes, the float travels 12 km in 2 hours. Using the formula velocity equals distance divided by time, the calculation is 12 divided by 2. This gives a stream velocity of 6 kmph, so the correct option is C.

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