A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
Choices:
A) 80 sec  B) 89 sec  C) 99 sec  D) 86 sec  E) 85 sec
Explanation:   Speed = (240/24) m/sec = 10 m/sec.   Required time =[ (240 + 650)/10) ] sec = 89 sec.   Answer:89 sec
<result>B</result>
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?