If a boat is rowed downstream for 200 km in 10 hours and upstream for 96 km in 12 hours, what is the speed of the boat and the river?	Pick.
A) 14 , 18 B) 14 , 6 C) 14 , 14 D) 6 , 6 E) 14 , 10
Explanation:   If x: speed of boats man in still water   y: speed of the river   Downstream speed (Ds) = x + y   Upstream speed (Us) = x â€“ y   x = (Ds + Us) / 2   y = (Ds â€“ Us) / 2   In the above problem Ds = 20 ; Us = 8   x = (20 + 8) / 2 = 28/2= 
<gadget id="calculator">28/2</gadget>
<output>14</output>
14 km/hr   y= (20 - 8) /2 = 12/2= 
<gadget id="calculator">12/2</gadget>
<output>6</output>
6 km/hr   ANSWER: 14 , 6
<result>B</result>
If a boat is rowed downstream for 200 km in 10 hours and upstream for 96 km in 12 hours, what is the speed of the boat and the river?