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mirzahamza
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A multiple choice test consists of 4 questions, and each que Updated on: 19 Aug 2024, 01:06
Originally posted by mirzahamza on 06 Nov 2013, 10:57.
Last edited by Bunuel on 19 Aug 2024, 01:06, edited 3 times in total.
Edited the question.
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C
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15% (low)

Question Stats:

75% (01:03) correct 25% (01:28) wrong based on 306 sessions

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A multiple choice test consists of 4 questions, and each question has 5 answer choices. In how many ways can the test be completed if every question is answered?

A) 24
B) 120
C) 625
D) 720
E) 1024­
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C
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Bunuel
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A multiple choice test consists of 4 questions, and each que 07 Nov 2013, 02:46
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mirzahamza
A multiple choice test consists of 4 questions, and each question has 5 answer choices. In how many ways can the test be completed if every question is unanswered?

A) 24
B) 120
C) 625
D) 720
E) 1024
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5 choices for each of the 4 questions, thus total of 5*5*5*5 = 5^4 = 625 ways to answer all of them.

Answer: C.
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A multiple choice test consists of 4 questions, and each que 28 Jun 2015, 07:46
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Hello Team

How is the answer 625, if it has been asked no of ways questions unanswered?

Please suggest here
Thanks
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Schools: IIM (A) ISB '24
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A multiple choice test consists of 4 questions, and each que 28 Jun 2015, 07:54
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mirzahamza
A multiple choice test consists of 4 questions, and each question has 5 answer choices. In how many ways can the test be completed if every question is unanswered?

A) 24
B) 120
C) 625
D) 720
E) 1024
Show more

In my opinion the language of the question is poorly framed

The question should have mentioned whether each question needs to be answered or not

Because if the test doesn't require to attempt all the questions but requires atleast one question to be attempted then every question has 6 choices (5 options and one choice to leave it blank) the test can be finished in
(6*6*6*6)-1 = 1296-1 = 1295 ways

If all the questions are necessary to be answered then the test can be completed in
5*5*5*5 = 625 ways
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A multiple choice test consists of 4 questions, and each que 28 Jun 2015, 07:56
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Hello Team

How is the answer 625, if it has been asked no of ways questions unanswered?

Please suggest here
Thanks
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Please read the language of question carefully

It says "In how many ways can the test be completed if every question is unanswered?"

So it says that the every question is unanswered.
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A multiple choice test consists of 4 questions, and each que 28 Jun 2015, 23:59
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It seems clear that the test writer meant to say "answered," not "unanswered." There is only one way to leave them all unanswered! :)
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A multiple choice test consists of 4 questions, and each que 19 Aug 2024, 01:03
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I think question should be corrected or deleted.
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