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Mathematics
Mathematics
Problem
If
a
a
a
,
b
b
b
,
c
c
c
are positive such that
a
b
2
c
3
=
64
ab^2c^3 = 64
a
b
2
c
3
=
64
then least value of
(
1
a
+
2
b
+
3
c
)
\left(\frac{1}{a} + \frac{2}{b} + \frac{3}{c}\right)
(
a
1
+
b
2
+
c
3
)
is - (A) 6 (B) 2 (C) 3 (D) 32
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