Alfred, ever hungry, decides to order (Combinatronics) : GMAT Problem Solving (PS)
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# Alfred, ever hungry, decides to order (Combinatronics)

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Manager
Joined: 06 Oct 2009
Posts: 105
Location: Mexico
Concentration: Entrepreneurship, Finance
GPA: 3.85
WE: Sales (Commercial Banking)
Followers: 1

Kudos [?]: 131 [0], given: 4

Alfred, ever hungry, decides to order (Combinatronics) [#permalink]

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13 Oct 2011, 12:41
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Question Stats:

100% (01:07) correct 0% (00:00) wrong based on 5 sessions

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Alfred, ever hungry, decides to order 4 desserts after his meal. If there are 7 types of pie, and 8 types of ice cream from which to choose, and Alfred will have at most two types of ice cream, hoy many distinct groups of desserts could he consume in his post-prandial frenzy?

A 588
B 868
C 903
D 1806
E 2010
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Joined: 20 Dec 2010
Posts: 2021
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Kudos [?]: 1705 [0], given: 376

Re: Alfred, ever hungry, decides to order (Combinatronics) [#permalink]

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13 Oct 2011, 14:03
Bull78 wrote:
Alfred, ever hungry, decides to order 4 desserts after his meal. If there are 7 types of pie, and 8 types of ice cream from which to choose, and Alfred will have at most two types of ice cream, hoy many distinct groups of desserts could he consume in his post-prandial frenzy?

A 588
B 868
C 903
D 1806
E 2010

0 Ice AND 4 Pie
OR
1 Ice AND 3 Pie
OR
2 Ice AND 2 Pie

$$C^8_0*C^7_4+C^8_1*C^7_3+C^8_2*C^7_2=903$$

Ans: "C"
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Re: Alfred, ever hungry, decides to order (Combinatronics)   [#permalink] 13 Oct 2011, 14:03
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