GMAT Challenge Question

This week’s GMAT challenge from is a problem solving question.

Circular pond with a 3 foot wide path around it.

The figure above shows a circular pond with it’s center at O, surrounded by a circular path that is 3 feet wide. If the area of the path is 63π square feet then what is the radius of the pond in feet?

  1. 8
  2. 9
  3. 10
  4. 11
  5. 12

Have a go at answering this and then review your answer.

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