A train 100 m long crosses a platform 125 m long in 2 sec; find the speed of the train?	Choose the correct choice from the following answers
A) 36	B) 405	C) 200	D) 302	E) 404
D = 100 + 125= 
<gadget id="calculator">100 + 125</gadget>
<output>225</output>
225   T= 2   S = 225/2 * 18/5= 
<gadget id="calculator">225/2 * 18/5</gadget>
<output>405</output>
405 kmph   Answer: 405
<result>B</result>
A train 100 m long crosses a platform 125 m long in 2 sec; find the speed of the train?