A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long? Choose the correct option
A) 65
B) 80
C) 85
D) 82
E) 89
Speed = (240/24)m/sec = 10 m/sec.   Therefore, Required time = (240 + 650)/10= 
<gadget id="calculator">(240 + 650)/10</gadget>
<output>89</output>
89 sec.   Answer is 89.
<result>E</result>
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?