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The bearing from P to Q is 300 degrees. What is the back bearing?

  • A.60 degrees
  • B.240 degrees
  • C.120 degrees
  • D.480 degrees

Answer: C

Because 300 exceeds 180, the 180 degrees is subtracted rather than added, giving 120. Adding would produce 480 degrees, which must then be reduced by a full circle of 360 to reach the same answer of 120, so either route works if it is followed through.

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