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The books error or mine?

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kensetsu
 Post subject: The books error or mine?
 Post Posted: Mon Apr 14, 2008 1:30 pm 
Does anyone know if the explanation for question 10 in the Math: Eq, Ineq, VIC book is wrong? I noticed that in the second example it states that: (81)[9a + b/4 = x/9 = 9] translates into 729a + 20.25b + 9x = 9. Shouldn't it be 729a = 20.25b + 9x = 729? I'm sorry if this is a stupid question, but at this point I can't think straight right now. I worked too many hours this week.

Thanks
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rfernandez
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 Post Posted: Fri Apr 18, 2008 12:12 am 
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ManhattanGMAT Staff


Posts: 386
Yep, it's a typo. You are correct. Thanks for catching that. (Fortunately, you don't need to actually solve this system of equations!)

Rey
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