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A circle has an area of A. A second circle has a diameter four times t
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04 Apr 2022, 02:00
04 Apr 2022, 02:00
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Question Stats:
84% (01:08) correct
15% (01:00) wrong based on 13 sessions
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A circle has an area of A. A second circle has a diameter four times that of the first circle. What is the area of the second circle?
2A
4A
8A
16A
32A
2A
4A
8A
16A
32A
Part of the project: GRE Quantitative Reasoning Daily Challenge - (2022) EDITION
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GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
Re: A circle has an area of A. A second circle has a diameter four times t
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06 Apr 2022, 02:14
06 Apr 2022, 02:14
1
Let 2 be the diameter of the first circle (radius 1) and 8 the diameter of the second circle (radius 4) since it is four times bigger.
Area of circle=πr^2
Area of first circle will be π and the second circle 16π, Hence option D
Area of circle=πr^2
Area of first circle will be π and the second circle 16π, Hence option D
gmatclubot
Re: A circle has an area of A. A second circle has a diameter four times t [#permalink]
06 Apr 2022, 02:14
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