A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 19 seconds. What is the length of the platform in meters?
Choose one:  A) 220 meters  B) 360 meters  C) 420 meters  D) 600 meters  E) Cannot be determined
Speed of the train in metres/sec = 72000/3600= 
<gadget id="calculator">72000/3600</gadget>
<output>20</output>
20   Distance travelled by train to cross the platform= 30 * 20= 
<gadget id="calculator">30 * 20</gadget>
<output>600</output>
600= Length of train + Length of platform   Distance travelled by train to cross the man = 19 * 20= 
<gadget id="calculator">19 * 20</gadget>
<output>380</output>
380= Length of train   Length of platform = 600 - 380= 
<gadget id="calculator">600 - 380</gadget>
<output>220</output>
220   220 metersnswer: 220 meters
<result>A</result>
A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 19 seconds. What is the length of the platform in meters?