The speed of a boat in upstream is 80 kmph and the speed of the boat downstream is 128 kmph. Find the speed of the boat in still water and the speed of the stream?	Choose the correct choice from the following answers.
A) 24
B) 99
C) 88
D) 66
E) 23
Speed of the boat in still water = (80+128)/2= 
<gadget id="calculator">(80+128)/2</gadget>
<output>104</output>
104 kmph. Speed of the stream= (80-60)/2 = 24 kmph. 24nswer:24
<result>A</result>
The speed of a boat in upstream is 80 kmph and the speed of the boat downstream is 128 kmph. Find the speed of the boat in still water and the speed of the stream?