1. Draw a sketch (see attachment)
2. The length of the red arrow cog (=course over ground) correspond to the actual speed of the airplane. Use the cosine rule:
3. Calculate the angle between the blue arrow, describing the direction and the speed of the wind, and the red arrow. Use Sine rule or Cosine rule again:
Thus you have to add the course of the airplane an angle of (30° - 27.732°). The airplane is flying a course over ground of N32.268°E.