Take a look at the answers. if I remember the answer spread for the question, just some lateral thought is required (not meaning you have none), and no actual calculation.
I imagine the answer would be something along the lines of N49.00 E121.00.
Normally, there is only one answer that fits. The position will have to be to the south west of the initial position A (as the hdg is 225), so your looking at a Latitude that is decreasing, and a Longtitude that is increasing.
Horgy