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Director
Joined: 16 May 2014
Posts: 592
Given Kudos: 0
GRE 1: Q165 V161
GRE Math Challenge#6- algebra problem
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03 Aug 2014, 11:08
03 Aug 2014, 11:08
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Question Stats:
73% (00:42) correct
26% (02:13) wrong based on 15 sessions
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Re: GRE Math Challenge#6
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04 Aug 2014, 21:00
04 Aug 2014, 21:00
2
Solving the eqns. we get, (x-y)^2=0; x=y and x^2=9 => x = +3/-3
Hence, with 2 values of x, it is difficult to ascertain which column will be greater.
The correct answer is (D)
Hence, with 2 values of x, it is difficult to ascertain which column will be greater.
The correct answer is (D)
Re: GRE Math Challenge#6- algebra problem
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16 Jan 2018, 20:09
16 Jan 2018, 20:09
quite difficult question, thought y should be -ve
but 13divyasha got the point--> (x-y)^2=0; x=y .. also we don't know if x is +ve.. so it is D
but 13divyasha got the point--> (x-y)^2=0; x=y .. also we don't know if x is +ve.. so it is D
