Question

if a boot travels 16 km in 2 hours downward stream nd upward in 4 hours than what is the speed in straight stream?

Answer 1

speed downward = x + 16/2
where x is speed of stream
speed downward = x +8
speed upstream = x - 8
distance downward in 2 hr = 2(x+8)
distance upward in 4 hr = 4( x - 8)
2(x+8) = 4(x-8)
x+8 = 2x -16
x = 24km/hr