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# A bag contains 3 red, 2 blue, and 7 white marbles. If a marb

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Retired Moderator
Joined: 07 Jun 2014
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A bag contains 3 red, 2 blue, and 7 white marbles. If a marb [#permalink]  05 Aug 2018, 14:25
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Question Stats:

100% (00:18) correct 0% (00:00) wrong based on 24 sessions
A bag contains 3 red, 2 blue, and 7 white marbles. If a marble is randomly chosen from the bag, what is the probability that it is not blue?

[Reveal] Spoiler: OA
$$\frac{5}{6}$$

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Sandy
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Retired Moderator
Joined: 07 Jun 2014
Posts: 4803
GRE 1: Q167 V156
WE: Business Development (Energy and Utilities)
Followers: 175

Kudos [?]: 3033 [0], given: 394

Re: A bag contains 3 red, 2 blue, and 7 white marbles. If a marb [#permalink]  07 Aug 2018, 06:14
Expert's post
Explanation

In the bag of marbles, there are 3 red marbles and 7 white marbles, for a total of 10 marbles that are not blue. There are a total of 3 + 7 + 2 = 12 marbles in the bag.

Since probability is defined as the number of desired items divided by the total number of choices, the probability that the marble chosen is not blue is $$\frac{10}{12}=\frac{5}{6}$$.
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Sandy
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Intern
Joined: 03 Oct 2019
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Re: A bag contains 3 red, 2 blue, and 7 white marbles. If a marb [#permalink]  04 Oct 2019, 14:34
5/6
Re: A bag contains 3 red, 2 blue, and 7 white marbles. If a marb   [#permalink] 04 Oct 2019, 14:34
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