The speed of a boat in still water is 60kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?  Select:
A) 90, 40 kmph
B) 80, 40 kmph
C) 80, 70 kmph
D) 80, 80 kmph
E) 50, 40 kmph
Speed downstream   = 60 + 20= 
<gadget id="calculator">60 + 20</gadget>
<output>80</output>
80 kmph   Speed upstream= 60 - 20= 
<gadget id="calculator">60 - 20</gadget>
<output>40</output>
40 kmph   Answer:80, 40 kmph
<result>B</result>
The speed of a boat in still water is 60kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?