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alltimeacheiver: Master | Next Rank: 500 Posts; Posts: 183; Joined: Wed Feb 09, 2011 3:08 amFollowed by: 5 members; Location: Delhi; Thanked: 1 times

by alltimeacheiver » Wed Apr 27, 2011 11:08 pm

By approximately what percent is x greater than 4/5 if (4/5)(x) = 1?
73%
56%
41%
37%
29%

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Source: Beat The GMAT — Problem Solving | Wed Apr 27, 2011 11:08 pm

srcc25anu: Master | Next Rank: 500 Posts; Posts: 423; Joined: Fri Jun 11, 2010 7:59 amFollowed by: 2 members; Location: Seattle, WA; Thanked: 86 times

by srcc25anu » Wed Apr 27, 2011 11:23 pm

x = 5/4

5/4 is greater than 4/5 by 9/20

and 9/20 is what % of 4/5?? its 9*5*100 / (20*4) = 56%

hence B

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