Question

A MAN Treval at 4 km/ hr in still water .if the speed of water current is 1 km/h.it takes 4 hours to reach the place and come back. How far is the place​

Answer 1

Answer:

A: This question is intended to remind you to NOT average speeds - you come up with the wrong result doing this.

If the speed one way is 5 km/hr and 3 km/hr the other, the average speed is NOT 4 km/hr.

Set the distance equal to K kilometers. Then the time to get there is K/5 hrs and to get back it’s K/3. Total time is 8K/15 hrs. That’s 4 hrs.

So 8K = 60 km and K = 7.5 km

(Notice how 15 km in 4 hours is an average speed of 3.75 km/hr ??)

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Answer 2

Answer:

12kilometer

Step-by-step explanation:

as speed of man would be 4-1

and then speed = distance/time