Question

14. The boat speed in still water is 8 km/hr. If it
can travel 12 km upstream at the same time
as it can travel 20 km downstream, the rate
of flow of stream in km/hr is
1) 4 km/hr
2) 2 km/hr
3) 4.5 km/hr
4) 5.5 km/hr​

Answer 1

Step-by-step explanation:

4 kmph

20 - 12 = 8 kmph so flow is 8/2 = 4 kmph