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# A cylindrical tank has a base with a circumference

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Director
Joined: 29 Jun 2017
Posts: 501
GMAT 1: 570 Q49 V19
GPA: 4
WE: Engineering (Transportation)
A cylindrical tank has a base with a circumference [#permalink]

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08 Jan 2018, 07:46
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A cylindrical tank has a base with a circumference of 4$$\sqrt{3\pi}$$ meters and an isosceles right triangle painted on the interior side of the base. A grain of sand is dropped into the tank, and has an equal probability of landing on any particular point on the base. If the probability of the grain of sand landing on the portion of the base outside the triangle is 3/4, which of the following is the length of at least one side of the triangle?

A) 3
B) 12
C) √2
D) √3
E) √6
[Reveal] Spoiler: OA

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Joined: 02 Sep 2009
Posts: 43806
Re: A cylindrical tank has a base with a circumference [#permalink]

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08 Jan 2018, 07:50
sahilvijay wrote:
A cylindrical tank has a base with a circumference of 4$$\sqrt{3\pi}$$ meters and an isosceles right triangle painted on the interior side of the base. A grain of sand is dropped into the tank, and has an equal probability of landing on any particular point on the base. If the probability of the grain of sand landing on the portion of the base outside the triangle is 3/4, which of the following is the length of at least one side of the triangle?

A) 3
B) 12
C) √2
D) √3
E) √6

Check here: https://gmatclub.com/forum/a-cylindrica ... 05453.html
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Re: A cylindrical tank has a base with a circumference   [#permalink] 08 Jan 2018, 07:50
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