Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Speed downstream = 60 +40 = 100 kmph
Speed upstream = 60 - 40 = 20 kmph
The question and answer:
The speed of a boat in still water is 60kmph and the speed of the current is 40kmph. Find the speed downstream and upstream?
Options:
(A) kmph
(B) kmph
(C) kmph
(D) kmph
(E) kmph
The answer is (D)