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Manager
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Experimental question [#permalink]
 01 Oct 2005, 07:53
This is a typical experimental question which doesn't affect the GMAT Quantitative score?
Is this easy?
2 + 2 x 3 + 3 x 4 =
A. 20
B. 24
C. 40
D. 60
E. 96
Last edited by mbassmbass04 on 01 Oct 2005, 11:37, edited 1 time in total.
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Manager
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Can you please check the formatting of the question ?
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Manager
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Just edited the question...
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Manager
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= 2 + 6 + 12 = 20.
* takes precedence over +
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Senior Manager
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Re: Experimental question [#permalink]
04 Oct 2005, 04:06
mbassmbass04 wrote: This is a typical experimental question which doesn't affect the GMAT Quantitative score?
Is this easy?
2 + 2 x 3 + 3 x 4 =
A. 20
B. 24
C. 40
D. 60
E. 96
It is 20 and is evaluated as 2 + 6 + 12 = 20
* takes preference over +.
BTW, how do we know if a question is experimental or not?. Can we figure them out?
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Manager
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You will never know. They are usually everywhere. There is a possibility that a very easy one or a very tough one is an experimental question. I heard that some experimental questions are at the end of the exam, some in the middle and fewer in the beginning....
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GMAT Club Legend
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Ans: 20. I can't quite believe this is considered very hard. Basic rules of arithmetic.
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Current Student
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Just curious how you knew this was an experimental problem??
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Manager
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It is evident. It is an extremely very easy question.
Let me give you another experimental question:
1/7 / 7/4 =
A. 1/4
B. 4/49
C. 1/49
D. 4
E. 1
Last edited by mbassmbass04 on 05 Oct 2005, 20:00, edited 2 times in total.
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Manager
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mbassmbass04 wrote:
1/7 / (7/4) =
A. 1/4
B. 4
C. 1/7
D. 7
E. 1
Am I missing something?
(1/7) / (7/4) is equivalent to (1/7)(4/7) = 4/49 which is not in any of the answer choices...
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Senior Manager
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mbassmbass04 wrote: It is evident. It is an extremely very easy question.
Let me give you another experimental question:
1/7 / (7/4) =
A. 1/4
B. 4
C. 1/7
D. 7
E. 1
I'm guessing this 1 / 7/(7/4) => 1 / (7*4/7) = 1/4
_________________
-Vikram
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Senior Manager
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I got 4/49...but redoing the problem as vikrm stated..u get 1/4
how did you know these were experimental?
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Manager
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Is the answer 1/4? I'm confused. If you solve the problem with a calculator as it's written you get 0.08163265...
Maybe I'm having a lapse, but why can you change the eq'n to 1/(7*4/7)? Doesn't that change the order of operations?
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Senior Manager
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MsStephanie wrote: Is the answer 1/4? I'm confused. If you solve the problem with a calculator as it's written you get 0.08163265...
Maybe I'm having a lapse, but why can you change the eq'n to 1/(7*4/7)? Doesn't that change the order of operations?
MsStephanie... your answer is not wrong.... it all depends on how that question is formatted... interpretation.
This question should ideally require a pic rather than formatting it by typing it out.
See attached... two different scenarios.... appear to be the same.
Attachments
expqt.GIF [ 1.46 KiB | Viewed 269 times ]
_________________
-Vikram
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Manager
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ahhh. that's what i figured. i hope on the test it's clear which order they are referring to! thank you.
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Director
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IMHO Experimental questions need not always be easy like the post's 1st question. Infact, practically speaking, no need to experiment with such a question - it can straightaway be put in the 'easy' bucket.
ETS may throw a 'new' question (to find out thru the experiment) how tough or how easy the queston is.
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close
