Questions from GMAT

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Questions from GMAT

by vishubn » Sat Jun 14, 2008 11:49 pm
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Last edited by vishubn on Sun Jun 15, 2008 3:59 am, edited 2 times in total.

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for # of books

by wawatan » Sun Jun 15, 2008 12:09 am
answer
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by wawatan » Sun Jun 15, 2008 7:08 pm
wait please ignore the top 2 equations

revised equation:

Total=average * # of things
Total= average * # of students

sorry for confusion. not a good idea to do math 2am.