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If a bag contains 18 yellow tiles and 22 black tiles, what is the prob

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Joined: 02 Sep 2009
Posts: 55638
If a bag contains 18 yellow tiles and 22 black tiles, what is the prob  [#permalink]

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New post 17 Sep 2018, 01:47
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

88% (00:28) correct 13% (00:22) wrong based on 43 sessions

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Joined: 01 Aug 2017
Posts: 190
Location: India
Concentration: General Management, Leadership
GMAT 1: 500 Q47 V15
GPA: 3.4
WE: Information Technology (Computer Software)
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Re: If a bag contains 18 yellow tiles and 22 black tiles, what is the prob  [#permalink]

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New post 17 Sep 2018, 02:11
Bunuel wrote:
If a bag contains 18 yellow tiles and 22 black tiles, what is the probability that a tile selected at random from the bag will be yellow?


A. \(\frac{1}{10}\)

B. \(\frac{9}{20}\)

C. \(\frac{11}{20}\)

D. \(\frac{9}{11}\)

E. \(\frac{11}{9}\)
.

Total number of tiles in a bag is \(18 + 22 = 40\).

Probability = \(\frac{Favorable Outcome}{Total number of Outcome}\)

Probability = \(\frac{18}{40}\)

Probability = \(\frac{9}{20}\)

Ans - B
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Re: If a bag contains 18 yellow tiles and 22 black tiles, what is the prob   [#permalink] 17 Sep 2018, 02:11
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If a bag contains 18 yellow tiles and 22 black tiles, what is the prob

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