In the figure shown, if
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Hi boomgoesthegmat,
This question can be solved by TESTing VALUES.
We're told that the area of the shaded region is 3 TIMES the area of the central circle...
Area of center = 1
Area of shaded region = 3(1) = 3
Area of FULL CIRCLE = 1+3 = 4
With those values....
Radius of center = 1
Radius of FULL CIRCLE = 2
The question asks how many times the circumference of the full circle is to the smaller circle...
Circumference of small circle = 2pi
Circumference of full circle = 4pi
Final Answer: C
GMAT assassins aren't born, they're made,
Rich
This question can be solved by TESTing VALUES.
We're told that the area of the shaded region is 3 TIMES the area of the central circle...
Area of center = 1
Area of shaded region = 3(1) = 3
Area of FULL CIRCLE = 1+3 = 4
With those values....
Radius of center = 1
Radius of FULL CIRCLE = 2
The question asks how many times the circumference of the full circle is to the smaller circle...
Circumference of small circle = 2pi
Circumference of full circle = 4pi
Final Answer: C
GMAT assassins aren't born, they're made,
Rich