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Permutations and Combinations

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Intern
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B
Joined: 23 Jul 2015
Posts: 32
Permutations and Combinations  [#permalink]

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New post 17 Mar 2019, 14:52
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

50% (04:33) correct 50% (02:37) wrong based on 2 sessions

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A question paper contains 15 questions. In how many ways can a student attempt 10 questions, if he attempts exactly 4 questions from the first six qquestions?

(1) 315
(2) 610)
(3) 252
(4) 1260
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Status: GMATINSIGHT Tutor
Joined: 08 Jul 2010
Posts: 2933
Location: India
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Permutations and Combinations  [#permalink]

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New post 17 Mar 2019, 20:50
SPatel1992 wrote:
A question paper contains 15 questions. In how many ways can a student attempt 10 questions, if he attempts exactly 4 questions from the first six qquestions?

(1) 315
(2) 610)
(3) 252
(4) 1260


6C4 * 9C6 = 15 * 84 = 1260

Answer: Option D

SPatel1992 This is GMAT related forum and GMAT questions have 5 options so please include another option E here with value 3003

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Permutations and Combinations   [#permalink] 17 Mar 2019, 20:50
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