A man can row with a speed of 15 kmph in still water. If the stream flows at 15 kmph, then the speed in downstream is?  Choose the correct option.
A) A)25 B) B)30 C) C)20 D) D)21 E) E)18
M = 15   S = 15   DS = 15 + 15= 
<gadget id="calculator">15 + 15</gadget>
<output>30</output>
30   Answer:30
<result>B</result>
A man can row with a speed of 15 kmph in still water. If the stream flows at 15 kmph, then the speed in downstream is?