The length of two trains (T_1) and (T_2) be the ratio of 5:6 and the length of platform is 1500m. The train (T_1) crosses a platform in 50sec and train (T_2) crosses a platform in 30sec. The speed of train (T_1) is 50 m/sec. Find the ratio of speed trains (T_1) and (T_2).

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