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SATMathematics Practice Test 1
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© examsnet.com
Question : 8
Total: 58
If
a
b
=
2
,what is the value of
4
b
a
?
0
1
2
4
Validate
Solution:
Since
a
b
=
2
, it follows that
b
a
=
1
2
,
Multiplying both sides of the equation by 4 given
4
(
b
a
)
=
4
b
a
=
2.
Choice A is incorrect because if
4
b
a
=
0
,
then
a
b
would be undefined.
Choice B is incorrect because if
4
b
a
=
1
,then
a
b
=
4
.
Choice D is incorrect because if
4
b
a
=
4
then
a
b
=
1
© examsnet.com
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