A train 100 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?	Choose the correct choice from the following options.
A) 12 B) 15 C) 18 D) 7 E) 32
Explanation:   speed= Distance/ Time   S = (100 + 300)/45 = 400/45 * 18/5= 
<gadget id="calculator">400/45 * 18/5</gadget>
<output>32</output>
32.   Answer: 32
<result>E</result>
A train 100 meters long completely crosses a 300 meters long bridge in 45 seconds. What is the speed of the train is?