A man can row with a speed of 15 kmph in still water. If the stream flows at 10 kmph, then the speed in downstream is?  Choices:	A) 25	B) 378	C) 20	D) 27	E) 121
M = 15   S = 10   DS = 15 + 10= 
<gadget id="calculator">15 + 10</gadget>
<output>25</output>
25   25nswer: 25
<result>A</result>
A man can row with a speed of 15 kmph in still water. If the stream flows at 10 kmph, then the speed in downstream is?