A train 360 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 120 meters long is?  Choose the most appropriate option.
A) 29
B) 18
C) 48
D) 99
E) 32
D = 360 + 120= 
<gadget id="calculator">360 + 120</gadget>
<output>480</output>
480   S= 54 * 5/18= 
<gadget id="calculator">54 * 5/18</gadget>
<output>15</output>
15 mps   T= 480/15= 
<gadget id="calculator">480/15</gadget>
<output>32</output>
32 sec   Answer: 32
<result>E</result>
A train 360 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 120 meters long is?