Question

About takes 2 hours to travel 8 km down and 8 kilometre of the river when the water is still how much time will it take to make the same trip and the river starts flowing at 4 kilometre per hour

Answer 1

Answer:

1hr

Explanation:

speed of boat=8/2=4kmh

speed of river =4kmh

distance=8km

since it is going downstream,

Total speed=4+4=8kmh

speed=distance/time

time=8/8=1hr