Question

the upstream speed of boat is 40km/hr and speed in still water is 55km/hr what is down strem speed​

Answer 1

Answer:

70m/s

___________________

Answer 2

Answer:

70 Km/Hr

Step-by-step explanation:

upstream speed of boat =40km/hr

Speed in still water=55Km/hr

So, Speed of stream =55-40=15Km/hr

Hence,Downstream speed =

=[Speed of Boat in still water]+[Speed of Stream]

=55+15

=70Km/hr

Hope it helps...

Regards;

Leukonov/Olegion.