Two trains A and B have lengths of 400 m 400 \text{ m} 400 m and ( 400 + x ) m (400 + x) \text{ m} ( 400 + x ) m respectively, and both move at the sa...
Question
Two trains A and B have lengths of and respectively, and both move at the same speed. Train A crosses a pole in $16$ seconds, while train B crosses the same pole in $24$ seconds. How long will train B take to cross a platform that is long?