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NDLadyzman: Junior | Next Rank: 30 Posts; Posts: 21; Joined: Mon Feb 26, 2007 11:42 am

by NDLadyzman » Tue Sep 16, 2008 9:46 am

I know how to get the answer by simply backsolving but can anyone show me the algebraic way of solving this problem? Thanks!!

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Source: Beat The GMAT — Problem Solving | Tue Sep 16, 2008 9:46 am

sudhir3127: Legendary Member; Posts: 829; Joined: Mon Jul 07, 2008 10:09 pm; Location: INDIA; Thanked: 84 times; Followed by:3 members

by sudhir3127 » Tue Sep 16, 2008 9:52 am

NDLadyzman wrote:I know how to get the answer by simply backsolving but can anyone show me the algebraic way of solving this problem? Thanks!!

2/3X-1/6X= 6

1/2X= 6

X = 12

Hope that helps...

NDLadyzman: Junior | Next Rank: 30 Posts; Posts: 21; Joined: Mon Feb 26, 2007 11:42 am

by NDLadyzman » Tue Sep 16, 2008 9:55 am

Yes it does. Thank you so much!!!

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