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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1055
GPA: 3.39
The figure above shows a cord around two circular disks. If the radii
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20 Sep 2021, 04:41
20 Sep 2021, 04:41
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Question Stats:
80% (02:06) correct
20% (02:56) wrong based on 5 sessions
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The figure above shows a cord around two circular disks. If the radii of the two disks are 80 centimeters and 60 centimeters, respectively, what is the total length, in centimeters, of the cord?
(A) \(210π\)
(B) \(210π+ 280\)
(C) \(280π\)
(D) \(280π + 80\)
(E) \(280π+ 280\)
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Re: The figure above shows a cord around two circular disks. If the radii
[#permalink]
20 Sep 2021, 05:46
20 Sep 2021, 05:46
1
Since the cord goes around 3/4 of both the circle, the total length of cord= \(2\pi*80*\frac{3}{4} + 2\pi*60*\frac{3}{4}+2*80 + 2*60 = 210\pi +280\)
Answer is B)
Answer is B)
gmatclubot
Re: The figure above shows a cord around two circular disks. If the radii [#permalink]
20 Sep 2021, 05:46
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