Median

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Vemuri: Legendary Member; Posts: 682; Joined: Fri Jan 16, 2009 2:40 amFollowed by: 1 member; Thanked: 32 times

by Vemuri » Mon Apr 27, 2009 10:41 pm

Please explain your answer

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Source: Beat The GMAT — Problem Solving | Mon Apr 27, 2009 10:41 pm

cramya: Legendary Member; Posts: 2467; Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members; Thanked: 331 times

by cramya » Mon Apr 27, 2009 11:10 pm

We have 20 items

Median = 10th item+11th item / 2

If u arrange the costs in increasing order the 10 the and 11th will both be 84

Median = 84+84/2 = 84

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Vemuri: Legendary Member; Posts: 682; Joined: Fri Jan 16, 2009 2:40 amFollowed by: 1 member; Thanked: 32 times

Re: Median

by Vemuri » Mon Apr 27, 2009 11:34 pm

Thanks Cramya. Silly me, I counted the sequence wrong.

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