A man swims downstream 96 km and upstream 40 km taking 8 hours each time; what is the speed of the current?
Options
A) 3.5 kmph  B) 1.5 kmph  C) 13 kmph  D) 6.5 kmph  E) 7:3kmph
Explanation:   96 --- 8 DS = 12   ? ---- 1   40 ---- 8 US = 5   ? ---- 1 S = ?   S = (12 - 5)/2= 
<gadget id="calculator">(12 - 5)/2</gadget>
<output>7/2 = around 3.5</output>
3.5   3.5 kmphnswer: Option 3.5 kmph
<result>A</result>
A man swims downstream 96 km and upstream 40 km taking 8 hours each time; what is the speed of the current?