Number Sequence

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[email protected]: Senior | Next Rank: 100 Posts; Posts: 62; Joined: Thu Jul 03, 2008 4:52 am

by [email protected] » Sat Jul 26, 2008 1:55 am

Hi

Got this question in the gmatprep and wondering if anyone knows a quick way to work it out, without having to substitute k for 1 - 10

The answer is D.

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thanks in advance

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Source: Beat The GMAT — Problem Solving | Sat Jul 26, 2008 1:55 am

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

by sudhir3127 » Sat Jul 26, 2008 4:40 am

please search the forum before u post .. has been answered many times...

you have 2 use Gometric progression and solve ..

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