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# Kim is taking a math class, and the teacher gives a multiple choice

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Current Student
Joined: 04 Feb 2014
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Location: India
Concentration: General Management, Entrepreneurship
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Kim is taking a math class, and the teacher gives a multiple choice  [#permalink]

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04 Jul 2016, 09:23
1
5
00:00

Difficulty:

25% (medium)

Question Stats:

72% (01:03) correct 28% (01:17) wrong based on 142 sessions

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Kim is taking a math class, and the teacher gives 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?

a 40
b 400
c 5^8
d 8^5
e 40^40

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Re: Kim is taking a math class, and the teacher gives a multiple choice  [#permalink]

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04 Jul 2016, 09:27
Each question can be answered in 5 ways (A or B or C or D or E)

8 questions can be answered in 5 * 5 * 5 * ..... 8 times = 5^8 ways

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Joined: 21 May 2013
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Re: Kim is taking a math class, and the teacher gives a multiple choice  [#permalink]

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04 Jul 2016, 09:32
I think it should be 40.

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Joined: 22 Jun 2016
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Re: Kim is taking a math class, and the teacher gives a multiple choice  [#permalink]

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04 Jul 2016, 09:36
different ways to solve each question is 5.
So, 5*5*5*5.. 8 times ----> 5^8

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Re: Kim is taking a math class, and the teacher gives a multiple choice  [#permalink]

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13 Jul 2016, 07:58
1
rikingajjar wrote:
I think it should be 40.

Sent from my iPhone using GMAT Club Forum mobile app

total no of questions = 8
each has 5 options
so each of the questions can be done in 5 ways
q1 --> 5
q2 --> 5
.
.
.
.
q8 --> 5
=5*5...*5(8 times)
=5^8
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Re: Kim is taking a math class, and the teacher gives a multiple choice  [#permalink]

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21 Apr 2018, 04:29
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Kim is taking a math class, and the teacher gives a multiple choice &nbs [#permalink] 21 Apr 2018, 04:29
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