The speed of a boat in upstream is 80 kmph and the speed of the boat downstream is 100 kmph. Find the speed of the boat in still water and the speed of the stream?\nOptions:\n(A) 90, 10 kmph\n(B) 35, 27 kmph\n(C) 50, 60 kmph\n(D) 45, 55 kmph\n(E) 45, 65 kmph
Let's be accurate as possible. Think before you answer.
(A)
Speed of the boat in still water = (80+100)/2 = 90 kmph.

Speed of the stream = (100-80)/2 = 10 kmph.

Final answer: (A)