CUET Mathematics - Let the corner points of the bounded feasible region of an LPP determined by a set of constraints are A(1, 5), B(3, 2) and C(2, 1). If the objective function z=2ax+by, a,b>0 has maximum values at points A and B, and z has minimum value 8 at point C, then the value of 4a+b is: | PYQs + Solutions | AfterBoards