A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 17 seconds. What is the length of the platform in meters? Answers:
A) 240 meters  B) 260 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 = 17 * 20= 
<gadget id="calculator">17 * 20</gadget>
<output>340</output>
340= Length of train   Length of platform = 600 - 340= 
<gadget id="calculator">600 - 340</gadget>
<output>260</output>
260   Answer: 260 meters
<result>B</result>
A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 17 seconds. What is the length of the platform in meters?