A man can row his boat with the stream at 14 km/h and against the stream in 4 km/h. The man's rate is? Choose the most appropriate option.
A) 1 kmph  B) 4 kmph  C) 5 kmph  D) 7 kmph  E) 8 kmph
DS = 14   US = 4   S = ?   S = (14 - 4)/2= 
<gadget id="calculator">(14 - 4)/2</gadget>
<output>5</output>
5 kmph   Answer: 5 kmph
<result>C</result>
A man can row his boat with the stream at 14 km/h and against the stream in 4 km/h. The man's rate is?