a man can row his boat with the stream at 12 km / h and against the stream in 8 km / h. the man ' s rate is?	Select
A) 2 kmph	B) 6 kmph	C) 7 kmph	D) 4 kmph	E) 9 kmph
<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<result>A</result>
a man can row his boat with the stream at 12 km / h and against the stream in 8 km / h. the man ' s rate is?
divide(subtract(12, 8), const_2)
explanation : ds = 12 us = 8 s = ? s = ( 12 - 8 ) / 2 = 2 kmph answer : a