Question

A boat goes 14 km upstream in 56 minute the speed of the stream is 2 km per hour the speed of the boat in still water is

Answer 1

Explanation :

Speed(S) = Distance(d)/Time(t)
If The speed of boat or boatman in still water is u kmph and The speed of water or stream is v kmph, then:
Speed upstream = (u - v) kmph ,In water, the speed against the stream

Speed upstream = 14/56 km/min = 14*60/56 km/hr= 15km/hr 
Speed in upstream = (u - v) kmph
15=u - 2 
So speed of boat in still water , u = 17 km/hr

Answer 2

Answer:

hey this TMKOC

Step-by-step explanation:

Speed(S) = Distance(d)/Time(t)

If The speed of boat or boatman in still water is u kmph and The speed of water or stream is v kmph, then:

Speed upstream = (u - v) kmph ,In water, the speed against the stream

Speed upstream = 14/56 km/min = 14*60/56 km/hr= 15km/hr  

Speed in upstream = (u - v) kmph

15=u - 2  

So speed of boat in still water , u = 17 km/hr