The speed of a boat in upstream is 100 kmph and the speed of the boat downstream is 120 kmph. Find the speed of the boat in still water and the speed of the stream?	Choices:
A) 70, 10 kmph B) 35, 27 kmph C) 110, 10 kmph D) 45, 55 kmph E) 45, 65 kmph
Speed of the boat in still water = (100+120)/2= 
<gadget id="calculator">(100+120)/2</gadget>
<output>110</output>
110 kmph. Speed of the stream= (120-100)/2= 
<gadget id="calculator">(120-100)/2</gadget>
<output>10</output>
10 kmph   ANSWER:110, 10 kmph
<result>C</result>
The speed of a boat in upstream is 100 kmph and the speed of the boat downstream is 120 kmph. Find the speed of the boat in still water and the speed of the stream?