The speed of a boat in still water is 80kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?  Answers.
A) kmph
B) kmph
C) kmph
D) kmph
E) kmph
Speed downstream = 80 + 20= 
<gadget id="calculator">80 + 20</gadget>
<output>100</output>
100 kmph   Speed upstream= 80 - 20= 
<gadget id="calculator">80 - 20</gadget>
<output>60</output>
60 kmph   Answer:kmph
<result>D</result>
The speed of a boat in still water is 80kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?