How long does a train 110 m long travelling at 60 kmph takes to cross a bridge of 170 m in length?	Choose the correct choice.
A) 15.8 sec
B) 14.9 sec
C) 12.4 sec
D) 16.8 sec
E) 11.8 sec
16.8 sec   16.8 sec   16.8 sec = 110 + 170= 
<gadget id="calculator">110 + 170</gadget>
<output>280</output>
280 m   S= 60 * 5/18 = 50/3   T = 280 * 3/50= 
<gadget id="calculator">280 * 3/50</gadget>
<output>84/5 = around 16.8</output>
16.8 sec
<result>D</result>
How long does a train 110 m long travelling at 60 kmph takes to cross a bridge of 170 m in length?