This is one of the most difficult Inequality question.Check Ron's explanation in the below link,
https://www.manhattangmat.com/forums/is- ... t4655.html
inequalities
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Source: Beat The GMAT — Data Sufficiency |
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selango
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Ok let me try explain in simple way.
The trick here is finding values so that 2 cases of inequalties exists[>,<]
stmt1,
X^2 + Y^2 > Z^2
x=2,y=2,z=1.X^4+Y^y > Z^4
x=3,y=3,z=4,X^4+Y^y < Z^4
Insuff
stmt2,
x+y>z
x=1,y=1,z=0,X^4+Y^y > Z^4
x=2,y=2,z=3,X^4+Y^y < Z^4
Insuff
Combining 1 and 2,
x=2,y=2,z=1.X^4+Y^y > Z^4
x=3,y=3,z=4,X^4+Y^y < Z^4
Insuff
Pick E
Hope this clarify!!
The trick here is finding values so that 2 cases of inequalties exists[>,<]
stmt1,
X^2 + Y^2 > Z^2
x=2,y=2,z=1.X^4+Y^y > Z^4
x=3,y=3,z=4,X^4+Y^y < Z^4
Insuff
stmt2,
x+y>z
x=1,y=1,z=0,X^4+Y^y > Z^4
x=2,y=2,z=3,X^4+Y^y < Z^4
Insuff
Combining 1 and 2,
x=2,y=2,z=1.X^4+Y^y > Z^4
x=3,y=3,z=4,X^4+Y^y < Z^4
Insuff
Pick E
Hope this clarify!!
--Anand--
