A train 150 m long crosses a platform 130 m long in 20 sec; find the speed of the train?  Choose the most appropriate option:
A) 50
B) 60
C) 55
D) 45
E) 53
D = 150 + 130= 
<gadget id="calculator">150 + 130</gadget>
<output>280</output>
280   T= 20   S = 280/20 * 18/5 = 50 kmph.   50nswer: 50
<result>A</result>
A train 150 m long crosses a platform 130 m long in 20 sec; find the speed of the train?