A man can row his boat with the stream at 10 km/h and against the stream in 6 km/h. The man's rate is?  Choose the most appropriate option:	A) 2 kmph	B) 7 kmph	C) 98 kmph	D) 6 kmph	E) 4 kmph
DS = 10   US = 6   S = ?   S = (10 - 6)/2= 
<gadget id="calculator">(10 - 6)/2</gadget>
<output>2</output>
2 kmph   2 kmphnswer: 2 kmph
<result>A</result>
A man can row his boat with the stream at 10 km/h and against the stream in 6 km/h. The man's rate is?