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# combination/permutation

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combination/permutation [#permalink]  26 Dec 2010, 18:30
00:00

Difficulty:

(N/A)

Question Stats:

25% (00:00) correct 75% (01:07) wrong based on 4 sessions
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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Re: combination/permutation [#permalink]  26 Dec 2010, 20:33
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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Re: combination/permutation [#permalink]  26 Dec 2010, 23:01
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] 26 Dec 2010, 23:01
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