Q: 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 Let's give some random thoughts before answering.
Speed downstream = 50 + 20 = 70 kmph
Speed upstream = 50 - 20 = 30 kmph
Therefore, the answer is (A).