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# Q. At a certain university, if 50 percent of the people who

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Director
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Q. At a certain university, if 50 percent of the people who [#permalink]

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19 May 2007, 11:28
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Q. At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?

(1) Fifteen percent of those who submit applications for admission are accepted at the university.
(2) Eighty percent of those who are accepted send a deposit to the university.
Current Student
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19 May 2007, 11:31
Assuming sending deposit is same as enrolling,

Those who enroll = 0.8x0.15 Those who submit app

So, 1 and 2 together are sufficient.
Senior Manager
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19 May 2007, 19:36
Q. At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?

(1) Fifteen percent of those who submit applications for admission are accepted at the university.
(2) Eighty percent of those who are accepted send a deposit to the university.

I'd go with E

(1) insufficient because we don't know if this fifteen percent come from 50 percent of people who inquire about admission
(2) insufficient we don't know if all of those 80 percent enroll in classes.
Director
Joined: 26 Feb 2006
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19 May 2007, 19:48
Amit05 wrote:
Q. At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?

(1) Fifteen percent of those who submit applications for admission are accepted at the university.

(2) Eighty percent of those who are accepted send a deposit to the university.

should be C cuz 50 of inquirer apply.
lets suppose the number of inquirer = x.

from i, 0.15 (0.5) x are accepted by the university. but not sure about admission.
from ii, 0.8 of accepted are admitted to the university. but what % of applicants are accepted? dont no.

i and ii, addmitted = 0.8 (0.15) (0.5x) = 0.06 of x or 6%.
Senior Manager
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19 May 2007, 19:53
Himalayan wrote:
Amit05 wrote:
Q. At a certain university, if 50 percent of the people who inquire about admission policies actually submit applications for admission, what percent of those who submit applications for admission enroll in classes at the university?

(1) Fifteen percent of those who submit applications for admission are accepted at the university.

(2) Eighty percent of those who are accepted send a deposit to the university.

should be C cuz 50 of inquirer apply.
lets suppose the number of inquirer = x.

from i, 0.15 (0.5) x are accepted by the university. but not sure about admission.
from ii, 0.8 of accepted are admitted to the university. but what % of applicants are accepted? dont no.

i and ii, addmitted = 0.8 (0.15) (0.5x) = 0.06 of x or 6%.

I'm still not sure about the answer. GMAT always plays with words.
Does anyone have OA?
Director
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19 May 2007, 21:02
Sorry guys.. the OA is E. I also chose C first. Does it mean here that submitting the deposit is not the same as enrolling in the classes...
Senior Manager
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19 May 2007, 23:17
yes my theory worked this time. Don't assume anything. If it is not said, no matter how obvious it may look, it's not a fact.
CEO
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19 May 2007, 23:24
Well that was a silly question... and I gave it the silly answer C...
Senior Manager
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06 Jun 2007, 06:00
Digging it up.
Still don't undersatnd why it is E.
Why (1) is not sufficient?
Director
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06 Jun 2007, 07:44
Caas wrote:
Digging it up.
Still don't undersatnd why it is E.
Why (1) is not sufficient?

because it does not mean that if University has accepted means you enrol there. What if you are accepted in 3 universities ? Will you enrol in all 3 ? No right ? hence 1 is in-suff.
Senior Manager
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06 Jun 2007, 07:56
oh! right! Thank you Amit!
I missed that point!
Director
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06 Jun 2007, 08:16
Caas wrote:
oh! right! Thank you Amit!
I missed that point!

No probs buddy..!!
Director
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06 Jun 2007, 15:58
chose E but for a different reason,

We know from the statement that 50% of the people who 'enquire' about policies apply, but we are not told nything about the people who do no enquire but apply !
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