Train A passes a platform of X meters in 25 seconds, while Train B crosses a platform of Y meters in 30 seconds. The lengths of Train A and Train B are in a 3:4 ratio. The speed of Train B is 25% higher than that of Train A. When both trains move in the same direction, they take 112 seconds to completely pass each other. Given that Y is greater than X, determine the value of X+Y?.