West Point, New York, is 87 mi due east of Scranton, Pennsylvania. An airplane leaves West Point at 10:00 A.M. and flies 250 mi/h in the direction 327 degrees. When (to the nearest minute) will the plane be due north of Scranton?

I am struggling to solve this Question.

I tried to say, if 250 mi/h, then in 87 mi, it will be 21 minutes. The answer is not correct.