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Practice Exam 1 - GMAT Prep - Word problem

Expert replies
by lucas211 » Thu May 26, 2016 6:03 am
Hello Everybody

Solved this question two days ago, and felt sure I got it right.
However now I see, that my choice is wrong - but still can't se why.
Anybody who can help?

My approach is to add the following:

100 pages of $5 = 500
40 pages of $3 (pages that were reviewed only once) = 120
10 pages of $3 (pages that were reviewed twice) = 30
for a total of $650


Image

Thanks in advance :)
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Source: — Problem Solving |

by Brent@GMATPrepNow » Thu May 26, 2016 6:14 am
lucas211 wrote:Hello Everybody

Solved this question two days ago, and felt sure I got it right.
However now I see, that my choice is wrong - but still can't se why.
Anybody who can help?

My approach is to add the following:

100 pages of $5 = 500
40 pages of $3 (pages that were reviewed only once) = 120
10 pages of $3 (pages that were reviewed twice) = 30
for a total of $650


Image

Thanks in advance :)
Hi Lucas,

Here's the problem: 10 pages of $3 (pages that were reviewed twice) = 30
Those 10 pages had TWO revisions.
Each revision is $3.
So, it should be: 10 pages of $6 (pages that were reviewed twice) = 60
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
Image
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by lucas211 » Thu May 26, 2016 6:19 am
Brent@GMATPrepNow wrote:
lucas211 wrote:Hello Everybody

Solved this question two days ago, and felt sure I got it right.
However now I see, that my choice is wrong - but still can't se why.
Anybody who can help?

My approach is to add the following:

100 pages of $5 = 500
40 pages of $3 (pages that were reviewed only once) = 120
10 pages of $3 (pages that were reviewed twice) = 30
for a total of $650


Image

Thanks in advance :)
Hi Lucas,

Here's the problem: 10 pages of $3 (pages that were reviewed twice) = 30
Those 10 pages had TWO revisions.
Each revision is $3.
So, it should be: 10 pages of $6 (pages that were reviewed twice) = 60
Cheers,
Brent
Of course !

Thanks Brent for this and your other replies :-)
Appreciate it!
Join the discussion