A man swims downstream 16 km and upstream 10 km taking 2 hours each time, what is the speed of the man in still water?
Choose the correct choice from the following answers: A) 7.0 B) 8.2 C) 6.5 D) 7 E) 6
16--- 2 DS = 8   ? ---- 1   10 ---- 2 US = 5   ? ---- 1 M = ?   M = (8 + 5)/2= 
<gadget id="calculator">(8 + 5)/2</gadget>
<output>13/2 = around 6.5</output>
6.5   Answer:6.5
<result>C</result>
A man swims downstream 16 km and upstream 10 km taking 2 hours each time, what is the speed of the man in still water?