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GMAT Prep - 4-letter or 5-letter code

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jdawg: Newbie | Next Rank: 10 Posts; Posts: 4; Joined: Sun Dec 07, 2008 4:14 am

by jdawg » Mon Dec 08, 2008 8:17 am

Could someone pls. explain how to get C? Thanks!

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Source: Beat The GMAT — Problem Solving | Mon Dec 08, 2008 8:17 am

EricLien9122: Master | Next Rank: 500 Posts; Posts: 106; Joined: Thu May 22, 2008 10:50 am; Thanked: 3 times

by EricLien9122 » Mon Dec 08, 2008 10:28 am

Total possible way: 26^4+26^5, which can rewrite as...26^4(1+26)=26^4(27).

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