A train 100 m long crosses a platform 125 m long in 10 sec; find the speed of the train? Choose the correct choice.
A) 81	B) 77	C) 54	D) 33	E) 99
D = 100 + 125= 
<gadget id="calculator">100 + 125</gadget>
<output>225</output>
225   T= 10   S = 225/10 * 18/5= 
<gadget id="calculator">225/10 * 18/5</gadget>
<output>81</output>
81 kmph   81nswer: 81
<result>A</result>
A train 100 m long crosses a platform 125 m long in 10 sec; find the speed of the train?