A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is?	Pick one:
A) 27	B) 23	C) 20	D) 28	E) 12
M = 15   S = 5   DS = 15 + 5= 
<gadget id="calculator">15 + 5</gadget>
<output>20</output>
20   Answer: 20
<result>C</result>
A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is?