The maximum value of z = 10x + 6y subject to constraints ` x ge 0, y ge 0, x +y le 12, 2x +y le 20` is

Maximum value of Z = 12x + 3y subject to constraints x ge 0,y ge 0, x+y le 5 and 3x+y le 9 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 = x + 4y subject to the constraints 3x+6y le 6, 4x+8y ge 16, x ge 0, y ge 0 is ………