Two trains are traveling toward each other at 30.5 m/s relative to the ground. One train is blowing a whistle at 830 Hz. What frequency will be heard...

Two trains are traveling toward each other at 30.5 m/s relative to the ground. One train is blowing a whistle at 830 Hz. What frequency will be heard on the other train if the wind is blowing at 30.5 m/s toward the whistle and away from the listener