A train 90 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 correct choice from the following answers:  A) 29  B) 18  C) 14  D) 99  E) 13
D = 90 + 120= 
<gadget id="calculator">90 + 120</gadget>
<output>210</output>
210   S= 54 * 5/18= 
<gadget id="calculator">54 * 5/18</gadget>
<output>15</output>
15 mps   T= 210/15= 
<gadget id="calculator">210/15</gadget>
<output>14</output>
14 sec   Answer: 14
<result>C</result>
A train 90 meters long is running with a speed of 54 kmph. The time taken by it to cross a tunnel 120 meters long is?