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3 different green balls, 4 diff. red balls & 2 diff. yellow balls

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Intern
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Joined: 25 Oct 2017
Posts: 1
3 different green balls, 4 diff. red balls & 2 diff. yellow balls [#permalink]

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New post 25 Oct 2017, 04:58
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Question Stats:

100% (00:00) correct 0% (00:00) wrong based on 2 sessions

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We are given 3 different green balls, 4 different red balls & 2 different yellow balls. In how many ways balls can be chosen so that atleast 1 green and yellow ball is selected

1. 336
2. 335
3. 60
4. 59
5. None

Bunuel

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Re: 3 different green balls, 4 diff. red balls & 2 diff. yellow balls [#permalink]

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New post 25 Oct 2017, 05:00
Option A

Selecting 1 green ball is 9C3 and one yellow ball is 9C2.
84+252=336

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Re: 3 different green balls, 4 diff. red balls & 2 diff. yellow balls   [#permalink] 25 Oct 2017, 05:00
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3 different green balls, 4 diff. red balls & 2 diff. yellow balls

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