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GRE Sample Test 1 Quantitative Reasoning 1
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© examsnet.com
Question : 7
Total: 20
(3x – 4y)(3x + 4y) = 2
Quantity A :
9
x
2
−
16
y
2
Quantity B :
4
Quantity A is greater.
Quantity B is greater.
The two quantities are equal.
The relationship cannot be determined from the information given.
Validate
Solution:
FOIL out the equation given, and you’ll get (3x − 4y)(3x + 4y) =
9
x
2
−
16
y
2
, so Quantity A is 2. Quantity B is therefore bigger, and the answer is (B).
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