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#51 (permalink) |
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Trying to make mom and pop proud
Join Date: Jun 2007
Posts: 21
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Zorillo wrote:
'For example, what is the probability that a number amongst the first 1000 positive integers is divisible by 8? Don’t start counting the multiples of 8! The figure of 1000 is a red herring. Use a little common sense. The numbers will be 8,16,24,32…So, 1 in every 8 numbers is a multiple of 8, even if you consider the first million integers. So Probability is 1/8 (Question from Power-Prep.)' Hi Zorrillo, I hate to nit-pick, but that approach only works because 1000 is divisible by 8.If the number mentioned was 999 or 1001, the probability would NOT have been 1/8.In my experience, its always better to do probability problems ab initio. Great post otherwise.Do keep up the good work. Cheers |
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#55 (permalink) |
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Trying to make mom and pop proud
Join Date: Apr 2006
Posts: 12
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see lecture here
ibt toefl | toefl test | toefl exam | free toefl practice test toefl TOEIC GRE GMAT IELTS - Index |
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#59 (permalink) |
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Trying to make mom and pop proud
Join Date: Feb 2008
Posts: 1
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Well, I used free material on:
and I did many practice exams on: GraduateTestPrep.com // Online GRE Preparation also, I used kaplan GRE General Study Book These really helped me. GraduateTestPrep.com // Online GRE Preparation featured new upto date GRE questions in an online computer adaptive test format. By doing their tests, I felt more confident and I am very happy with my final scores! Good luck everybody, Lara |
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