The speed of a boat in still water is 40kmph and the speed of the current is 20kmph. Find the speed downstream and upstream? Answers:	A) 40, 68 kmph	B) 40, 30 kmph	C) 90, 60 kmph	D) 40, 60 kmph	E) 60, 20 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: 60, 20 kmph
<result>E</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?