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A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?

65 sec
89 sec
100 sec
150 sec
Explanation:
Speed =$ \left(\dfrac{240}{24} \right) $m/sec = 10 m/sec.
$\therefore$ Required time =$ \left(\dfrac{240 + 650}{10} \right) $sec = 89 sec.
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