50% of the aparments in a certain building have windows and hardwood floors. 25% of the apartments without windows have hardwood floors. If 40% of the apartments do not have hardwood floors, what percent of the apartments with windows have hardwood floors?
A. 10
B. 16 2/3
C. 40
D. 50
E. 83 1/3
Please suggest me a quick way to tackle such problems.
OA is E
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caspermonday
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Hey, the best way, in my opinion was suggested by MGMAT (they propose to fill out a simple matrix, you should see it in their Word transalations). Refer there. You will save loads of time at your exam.
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mehravikas
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Can you draw a table please?
caspermonday wrote:Hey, the best way, in my opinion was suggested by MGMAT (they propose to fill out a simple matrix, you should see it in their Word transalations). Refer there. You will save loads of time at your exam.
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caspermonday
- Senior | Next Rank: 100 Posts
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- Joined: Fri Aug 14, 2009 12:03 am
Sorry, I got late to answer. I found another link where I explained in details how to use this matrix, see: https://gmatclub.com/forum/probability-b ... ml#p622413mehravikas wrote:Can you draw a table please?
