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yes, that is the correct answer.
I have a problem with the wording.
The plane is not really traveling at 1225km/hr it is travelling at 1225km/hr minus headwind. Since headwind equals 175km/hr the "actual" speed of the plane is 1050km/hr.
I think it should've said, "What is the speed of the plane before the headwind/tailwind is accounted for?"
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