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GRE Sample Test 5 Quantitative Reasoning 2
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© examsnet.com
Question : 7
Total: 20
Quantity A :
16
−
a
4
−
b
Quantity B :
4
b
−
2
a
A
B
C
D
Validate
Solution:
Simplify Quantity A by expressing the numerator as base 4 :
16
−
a
=
(
4
2
)
−
a
. Therefore,
16
−
a
4
−
b
=
4
−
2
a
4
−
b
=
4
(
−
2
a
+
b
)
or
4
b
−
2
a
. The two quantities are equal.
© examsnet.com
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