A girl swims downstream 48 km and upstream 16 km taking 8 hours each time; what is the speed of the current?
Answers
A) 2.0	B) 2.1	C) 2.2	D) 2.3	E) 2.4
48 --- 8 DS = 6   ? ---- 1   16 ---- 8 US = 2   ? ---- 1 S = ?   S = (6 - 2)/2= 
<gadget id="calculator">(6 - 2)/2</gadget>
<output>2</output>
2   2.0nswer:2.0
<result>A</result>
A girl swims downstream 48 km and upstream 16 km taking 8 hours each time; what is the speed of the current?