A bullet train 140 m long is running at 60 kmph. In how much time will it pass a platform 210 m long?  Pick one
A) 34 Seconds  B) 22 Seconds  C) 21 Seconds  D) 24 Seconds  E) 29 Seconds
Distance travelled = 140 + 210= 
<gadget id="calculator">140 + 210</gadget>
<output>350</output>
350m   Speed= 60 * 5/8 = 50/3m   Time = 350 * 3/50= 
<gadget id="calculator">350 * 3/50</gadget>
<output>21</output>
21 Seconds   ANSWER 21 Seconds
<result>C</result>
A bullet train 140 m long is running at 60 kmph. In how much time will it pass a platform 210 m long?