A train $240$ meters long crosses a pole in x x x seconds, and it crosses a platform $360$ meters long in ( x + 9 ) (x + 9) ( x + 9 ) seconds. If a do...
Question
A train $240$ meters long crosses a pole in seconds, and it crosses a platform $360$ meters long in seconds. If a dog runs in the same direction as the train at a speed of , how much time will the train take to cross the dog?