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# 10% of GMAT test takers take the exam more than once

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Manager
Joined: 15 Jun 2019
Posts: 216
10% of GMAT test takers take the exam more than once  [#permalink]

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20 Nov 2019, 23:44
2
00:00

Difficulty:

75% (hard)

Question Stats:

44% (02:20) correct 56% (02:40) wrong based on 25 sessions

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10% of GMAT test takers take the exam more than once and have a high score of 650 or greater, and 20% of GMAT test takers who take the test only once have a score of 650 or greater. if 40% of GMAT test takers take the exam more than once, What percent of GMAT test takers have a high score of less than 650?

A. 10.5%

B. 22%

C. 30%

D. 70%

E. 78%
Manager
Joined: 15 Jun 2019
Posts: 216
Re: 10% of GMAT test takers take the exam more than once  [#permalink]

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20 Nov 2019, 23:52
The method i have followed is,
from the question we can arrive at the Double matrix as shown in the figure attached

Attachment:

method 2.png [ 44.11 KiB | Viewed 248 times ]

here we can deduce x as 60%

so people who took once and score 650+ is 20% of x = 12%

so total 650+ = 12% + 10% = 22%

hence < 650 = 100% - 22% = 78% .

Thus ans E
Manager
Joined: 16 Feb 2015
Posts: 157
Location: United States
Concentration: Finance, Operations
Re: 10% of GMAT test takers take the exam more than once  [#permalink]

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21 Nov 2019, 21:42
ccheryn wrote:
The method i have followed is,
from the question we can arrive at the Double matrix as shown in the figure attached

Attachment:
method 2.png

here we can deduce x as 60%

so people who took once and score 650+ is 20% of x = 12%

so total 650+ = 12% + 10% = 22%

hence < 650 = 100% - 22% = 78% .

Thus ans E

Dear ccheryn

One very good suggestion for you!! Hope u will understand.
I have seen 5-6 posts of yours till now, You always post answer explanation just after posting a question in the forum.
I think this is not a good approach. Let others first solve the questions for at least 2-3 days, then you should post the explanation.
It will help others, so they can solve the problem on their own.

Regards,
Rajat Chopra
Re: 10% of GMAT test takers take the exam more than once   [#permalink] 21 Nov 2019, 21:42
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