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satyasharma321: Newbie | Next Rank: 10 Posts; Posts: 5; Joined: Fri Sep 26, 2008 8:04 am

by satyasharma321 » Tue Feb 24, 2009 3:03 pm

Pls explain

|-4| (|-20|-|5|)=
A. –100 B. –60 C. 60 D. 75 E. 100

OA c

Thanks!!

Source: Beat The GMAT — Problem Solving | Tue Feb 24, 2009 3:03 pm

awesomeusername: Master | Next Rank: 500 Posts; Posts: 226; Joined: Tue Jan 13, 2009 1:27 pm; Thanked: 23 times; Followed by:1 members

by awesomeusername » Tue Feb 24, 2009 3:10 pm

|-4| = 4
|-20| = 20
|5| = 5

Thus, |-4| (|-20|-|5|) = 4(20-5) = 4(15) = 60

Constant dripping hollows out a stone.
-Lucretius

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