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### Discussion :: Problems on Trains

1.  A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
2.  A. 65 sec B. 89 sec C. 100 sec D. 150 sec

 Speed = $$[\frac { 240 } { 24 } ]$$ m/sec = 10 m/sec.
 Required time =$$[\frac { 240+650 } { 10 } ]$$ sec = 89 sec.