The speed of a boat in still water is 40kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?	Choose the correct answer: A) kmph B) kmph C) kmph D) kmph E) kmph
Speed downstream = 40 + 20= 
<gadget id="calculator">40 + 20</gadget>
<output>60</output>
60 kmph   Speed upstream= 40 - 20= 
<gadget id="calculator">40 - 20</gadget>
<output>20</output>
20 kmph   Answer:kmph
<result>B</result>
The speed of a boat in still water is 40kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?