A train 225 m long running at 90 kmph crosses a platform in 25 sec. What is the length of the platform?	Choose the correct answer:	A) 271	B) 266	C) 400	D) 277	E) 232
Length of the platform= 90 * 5/18 * 25= 
<gadget id="calculator">90 * 5/18 * 25</gadget>
<output>625</output>
625 – 225= 400   Answer:400
<result>C</result>
A train 225 m long running at 90 kmph crosses a platform in 25 sec. What is the length of the platform?