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 think first. Stream of consciousness:
User
Speed of the boat in still water = (80+100)/2 = 90 kmph. Speed of the stream = (100-80)/2 = 10 kmph
So, the answer is (A).
Assistant