A train 250 m long running at 72 kmph crosses a platform in 20 sec. What is the length of the platform?
Pick one:
A) 150m B) 200m C) 250m D) 270m E) 300 m
D = 72 * 5/18= 
<gadget id="calculator">72 * 5/18</gadget>
<output>20</output>
20= 400 â€“ 250 = 150m   150mNSWER:150m
<result>A</result>
A train 250 m long running at 72 kmph crosses a platform in 20 sec. What is the length of the platform?