A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 15 seconds. What is the length of the platform in meters?
Choose the correct choice from the following.
A) 240 meters
B) 360 meters
C) 300 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 = 15 * 20= 
<gadget id="calculator">15 * 20</gadget>
<output>300</output>
300= Length of train   Length of platform = 600 - 300= 
<gadget id="calculator">600 - 300</gadget>
<output>300</output>
300   Answer: 300 meters
<result>C</result>
A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 15 seconds. What is the length of the platform in meters?