Question

The speed of boat in still water is 6 km/hr. It goes downstream for a distance of 31 km in 4 hrs. Find the speed of the stream.​

Answer 1

Answer: 1.75 km/hr

Step-by-step explanation:

let speed of the stream be x.

downstream speed = (x+6) km/hr

using formula distance = speed * time

31 = (x+6) * 4

31/4 = x+6

x = 31/4 - 6

x = 7.75 - 6

x = 1.75 km/hr