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04 Sep 2018, 23:30
Kudos
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
57% (01:31) correct
43%
(01:11)
wrong
based on 54
sessions
History
Date
Time
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Not Attempted Yet
What is the area of the shaded region?
(1) Radius of circle with center O is one-third the radius of the circle with center P.
(2) The area of the unshaded region is 36π
Attachment:
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05 Sep 2018, 01:18
Kudos
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Bunuel
St1) figure is not restricted. Various sizes circle are possible with varying common overlaps. Another way to think is count information is asked but ratio information is given.
Not suff.
St2) various radius can give 36pi as area of unshaded region. So overlap will keep on changinh.
Combining: the radius is restricted and unshed area is restricted. So only one unique value of common overlap exist
Answer seems C
Thank you = Kudos
05 Sep 2018, 02:02
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