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

(a) (20,0)

B

(b) (15,5)

C

(c) (0,5)

D

(d) (0,20)

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The correct Answer is:

D

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