Downstream distance of boat 1 in 5 hours is 35 km while downstream distance of boat 2 in 4 hours is 52 km. Ratio of speeds of boats in still water is 2 ∶ 5, find speed of stream(in km/hr).
1
1
2
1.5
3
2
4
2.5
5
3
Downstream distance of boat 1 in 5 hours is 35 km while downstream distance of boat 2 in 4 hours is 52 km. Ratio of speeds of boats in still water is 2 ∶ 5, find speed of stream(in km/hr).