825 - Math - Problem Solving

Question: Two trains, 200 and 160 meters long take a minute to cross each other while traveling in the same direction and take only 10 seconds when they cross in opposite directions. What are the speeds at which the trains are traveling?

1. 21 m/s; 15 m/s
2. 30 m/s; 24 m/s
3. 18 m/s; 27 m/s
4. 15 m/s; 24 m/s