Question 1113065
 A ‘plane which is flying at 216 knots on a course of 310 degrees, passes over Dubbo at
3.40pm. How far west of Dubbo will it be at 4.15pm?
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t = 35 minutes = 7/12 hours
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d = 216*(7/12) = 126 nm from Dubbo
Distance West = 126*cos(40)