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Simple % Proportion that is trickier than it looks?

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Simple % Proportion that is trickier than it looks?  [#permalink]

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New post 18 Aug 2017, 18:43
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28. (Book Question: 141)In a certain medical survey, 45 percent of the people surveyed had the type A antigen in their blood and 3 percent had both the type A antigen and the type B antigen. Which of the following is closest to the percent of those with the type A antigen who also had the type B antigen?

A. 1.35%
B. 6.67%
C. 13.50%
D. 15.00%
E. 42.00%

It seems to be easy but I can't wrap my head around it..

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Re: Simple % Proportion that is trickier than it looks?  [#permalink]

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New post 19 Aug 2017, 01:54
dyee630k wrote:
28. (Book Question: 141)In a certain medical survey, 45 percent of the people surveyed had the type A antigen in their blood and 3 percent had both the type A antigen and the type B antigen. Which of the following is closest to the percent of those with the type A antigen who also had the type B antigen?

A. 1.35%
B. 6.67%
C. 13.50%
D. 15.00%
E. 42.00%

It seems to be easy but I can't wrap my head around it..


Hi dyee630k,

Please google or use gmatclub search to see whether the question already exists on the forum. This question is already discussed here : https://gmatclub.com/forum/in-a-certain-medical-survey-45-percent-of-the-people-surveyed-had-the-245519.html

Please read the rules of posting here : https://gmatclub.com/forum/rules-for-posting-please-read-this-before-posting-133935.html
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Re: Simple % Proportion that is trickier than it looks?  [#permalink]

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New post 19 Aug 2017, 03:14
dyee630k wrote:
28. (Book Question: 141)In a certain medical survey, 45 percent of the people surveyed had the type A antigen in their blood and 3 percent had both the type A antigen and the type B antigen. Which of the following is closest to the percent of those with the type A antigen who also had the type B antigen?

A. 1.35%
B. 6.67%
C. 13.50%
D. 15.00%
E. 42.00%

It seems to be easy but I can't wrap my head around it..


Please read carefully and follow our RULES OF POSTING. Thank you.

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.


If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

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Re: Simple % Proportion that is trickier than it looks?   [#permalink] 19 Aug 2017, 03:14
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Simple % Proportion that is trickier than it looks?

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