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# r, s, and t are the radii of three circular regions that hav

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r, s, and t are the radii of three circular regions that hav [#permalink]  13 Aug 2019, 04:41
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Question Stats:

58% (01:01) correct 41% (01:06) wrong based on 31 sessions
r, s, and t are the radii of three circular regions that have areas R, S, and T, respectively.

$$R=2S$$and $$S=2T$$

 Quantity A Quantity B r 2t

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Intern
Joined: 15 Aug 2019
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Kudos [?]: 21 [0], given: 3

Re: r, s, and t are the radii of three circular regions that hav [#permalink]  15 Aug 2019, 14:22
R=2S=4T
so r^2=2s^2=4t^2
r=\sqrt{2}s=2t

so r=2t
so ans is C
Re: r, s, and t are the radii of three circular regions that hav   [#permalink] 15 Aug 2019, 14:22
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