The speeds of two trains are in the ratio of 7 ∶ 9. They are moving in the opposite directions on parallel tracks. The first train crossed a pole in 4 seconds whereas the second train crossed the same pole in 6 seconds. Find the time taken by the trains to cross each other completely.
1
\(5\frac{1}{8}\) Seconds
2
\(2\frac{1}{6}\) Seconds
3
\(4\frac{1}{8}\) Seconds
4
\(3\frac{1}{6}\) Seconds