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pradeepkaushal9518: Legendary Member; Posts: 1309; Joined: Wed Mar 17, 2010 11:41 pmFollowed by: 5 members; Thanked: 33 times

by pradeepkaushal9518 » Sat Aug 28, 2010 10:32 pm

what is the value of /x/^3 ?

1.x^3=-8
2.x=-/x/

how do u find the question ordinary/good/very good/excellent?

A SMALL TOWN GUY

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Source: Beat The GMAT — Data Sufficiency | Sat Aug 28, 2010 10:32 pm

sirisha.g: Senior | Next Rank: 100 Posts; Posts: 85; Joined: Thu Jul 15, 2010 7:50 pm; Thanked: 1 times; GMAT Score:690

by sirisha.g » Sat Aug 28, 2010 11:05 pm

IMO A.
statement 1) x^3=-8=> x=-2 so u will get a unique value.
statement 2) x=-/x/ only when x is negative. but will get a number of values of x so getting a unique value for /x/^3 is not possible.

I feel it's a good question.

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