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# combination/permutation

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Senior Manager
Status: Do and Die!!
Joined: 15 Sep 2010
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26 Dec 2010, 19:30
00:00

Difficulty:

(N/A)

Question Stats:

40% (00:26) correct 60% (01:07) wrong based on 5 sessions

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Kim is writing a multiple choice test consisting of 8 questions. If each question has 5 answer choices, and Kim answers every question, in how many different ways can she complete the test

40
400
$$5^8$$
$$8^5$$
$$40^40$$

This is permutation or combination question.
[Reveal] Spoiler: OA

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Retired Moderator
Joined: 03 Aug 2010
Posts: 235

Kudos [?]: 43 [0], given: 41

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26 Dec 2010, 21:33
shrive555 wrote:
Kim is writing a multiple choice test consisting of 8 questions. If each question has 5 answer choices, and Kim answers every question, in how many different ways can she complete the test

40
400
$$5^8$$
$$8^5$$
$$40^40$$

This is permutation or combination question.

Permutations

I think it shold be D
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Manager
Joined: 31 May 2010
Posts: 94

Kudos [?]: 48 [0], given: 25

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27 Dec 2010, 00:01
Ans - C

Number of ways a question can be answered is = 5 (no.of choices)
Total number of questions is = 8
So 5x5x5x5x5x5x5x5 = 5^8
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Re: combination/permutation   [#permalink] 27 Dec 2010, 00:01
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