GMAT Quantitative Reasoning Quiz
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NUMBER PROPERTIES
Question 1
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If
a
a
a
and
b
b
b
are positive integers such that
gcd
(
a
,
b
)
=
12
\gcd(a,b) = 12
g
cd
(
a
,
b
)
=
12
and
lcm
(
a
,
b
)
=
180
\text{lcm}(a,b) = 180
lcm
(
a
,
b
)
=
180
, what is the value of
a
b
ab
ab
?
A
a
b
=
2160
ab = 2160
ab
=
2160
B
a
b
=
1800
ab = 1800
ab
=
1800
C
a
b
=
2040
ab = 2040
ab
=
2040
D
a
b
=
1980
ab = 1980
ab
=
1980
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