Speed downstream = 50 + 20 = 70 kmph
Speed upstream = 50 - 20 = 30 kmph
The speed of a boat in still water is 50kmph and the speed of the current is 20kmph. Find the speed and upstream?
Options:
a) 30 kmph
b) 40 kmph
c) 78 kmph
d) 15 kmph
e) 23 kmph