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The co-ordinates of the point for minimu...

The co-ordinates of the point for minimum value z = 7x - 8y subject to the conditons `x+y-20le0,yge 5,xge 0,` is

A

(20,0)

B

(15,5)

C

(0,5)

D

(0,20)

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The correct Answer is:
D
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