st(1) xy>z^4 says that xy must be positive in anyway, Sufficient
st(2)x>z is Not Sufficient, as we don't know y
a
jayanti wrote:Q) Given that X,Y,Z are non zero integers. IS X^3Y^5Z^4>0?
(1) XY > Z^4
2) X > Z
Correct answer is A.
Inequality
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Source: Beat The GMAT — Data Sufficiency |
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pemdas
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this must be simple, given z^4 is always positive, we need to know if both x and y are positive or if they are both negative
st(1) xy>z^4 says that xy must be positive in anyway, Sufficient
st(2)x>z is Not Sufficient, as we don't know y
a
st(1) xy>z^4 says that xy must be positive in anyway, Sufficient
st(2)x>z is Not Sufficient, as we don't know y
a
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