A train 300 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?	Choose the most appropriate option:
A) 32	B) 48	C) 29	D) 27	E) 21
S = (300 + 300)/45 = 600/45 * 18/5= 
<gadget id="calculator">600/45 * 18/5</gadget>
<output>48</output>
48   Answer: 48
<result>B</result>
A train 300 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?