The maximum vlaue of ` Z = 9x+13y ` subject to constraints ` 2x+3yle 18, 2x+y le 10, x ge 0, y ge 0 ` is

The maximum value of Z = x + 3y subject to the constraints 2x+y le 20, x+2y le 20, x ge 0, y ge 0 is ……….

The maximum value of Z = 3x + 5y subjected to the constraints x + y le 2, 4x + 3y le 12, x ge 0, y ge 0 is

The maximum value of Z = 4x + 2y subject to the constraints 2x+3y le 18,x+y ge 10, x , y ge 0 is

The maximum value of Z = x + 4y subject to the constraints 3x+6y le 6, 4x+8y ge 16, x ge 0, y ge 0 is ………

The maximum value of Z = 4x + 2y subjected to the constraints 2x + 3y le 18, x + y ge 10, where x, y ge 0 is :