How long does a train 110 m long traveling at 60 kmph takes to cross a bridge of 390 m in length?
Options:
A) 18.9 sec B) 88.9 sec C) 22.9 sec D) 30.00 sec E) 72.0 sec
30.00 sec = 110 + 390= 
<gadget id="calculator">110 + 390</gadget>
<output>500</output>
500 m   S= 60 * 5/18 = 50/3   T = 500 * 3/50= 
<gadget id="calculator">500 * 3/50</gadget>
<output>30</output>
30 sec   Answer: 30.00 sec
<result>D</result>
How long does a train 110 m long traveling at 60 kmph takes to cross a bridge of 390 m in length?