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Problem
Problem
The number of positive integer solutions of
a
+
b
+
c
=
60
a + b + c = 60
a
+
b
+
c
=
60
, where
a
a
a
is a factor of
b
b
b
and
c
c
c
, is a. 184 b. 200 c. 144 d. 270
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