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?
Choose the correct choice from the following choices
A) 90, 10 kmph	B) 35, 27 kmph	C) 50, 60 kmph	D) 45, 55 kmph	E) 45, 65 kmph
Speed of the boat in still water = (80+100)/2= 
<gadget id="calculator">(80+100)/2</gadget>
<output>90</output>
90 kmph. Speed of the stream= (100-80)/2= 
<gadget id="calculator">(100-80)/2</gadget>
<output>10</output>
10 kmph   90, 10 kmphNSWER:90, 10 kmph
<result>A</result>
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?