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# Liz owns 2 green t-shirts, 4 blue t-shirts, and 5 red t-shir

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GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4711
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1615 [0], given: 376

Liz owns 2 green t-shirts, 4 blue t-shirts, and 5 red t-shir [#permalink]  22 Nov 2017, 18:53
Expert's post
00:00

Question Stats:

99% (00:30) correct 0% (00:00) wrong based on 14 sessions
Liz owns 2 green t-shirts, 4 blue t-shirts, and 5 red t-shirts

 Quantity A Quantity B The probability that Liz randomly selects a blue t-shirt $$\frac{2}{5}$$

A. Quantity A is greater.
B. Quantity B is greater.
C. The two quantities are equal.
D. The relationship cannot be determined from the information given.

Drill 1
Question: 5
Page: 521-522
[Reveal] Spoiler: OA

_________________

Sandy
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GMAT Club Legend
Joined: 07 Jun 2014
Posts: 4711
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 91

Kudos [?]: 1615 [0], given: 376

Re: Liz owns 2 green t-shirts, 4 blue t-shirts, and 5 red t-shir [#permalink]  10 Dec 2017, 13:10
Expert's post
Explanation

To calculate the probability, divide the part by the whole: $$\frac{blue_shirts}{total_shirts}=\frac{4}{11}$$.
Choice (B) is correct because $$\frac{4}{11} < \frac{4}{10}$$ (which is simply $$\frac{2}{5}$$ multiplied by 2).

Hence option B is correct!
_________________

Sandy
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Re: Liz owns 2 green t-shirts, 4 blue t-shirts, and 5 red t-shir   [#permalink] 10 Dec 2017, 13:10
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