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CBSE XII
>>
Math
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Linear Programming
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Q)
Show that the minimum of
Z
occurs at more than two points. Minimise and Maximise
Z
=
5
x
+
10
y
subject to
x
+
2
y
≤
120
,
x
+
y
≥
60
,
x
–
2
y
≥
0
,
x
,
y
≥
0.
M
i
n
=
300
,
M
a
x
=
600
M
i
n
=
100
,
M
a
x
=
300
M
i
n
=
300
,
M
a
x
=
400
M
i
n
=
400
,
M
a
x
=
600
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