Assume that the furniture shop offers to buy up to 10 medium sized and 20 small sized wardrobes from John, if he can deliver twice as many small sized ones (e.g., 8 medium if John can deliver 16 small). Write constraint(s) to ensure that the demand increases only if John accepts the offer. Revise your constraint(s) in part (b) to also include the new offer. You may need to introduce new decision variables. If you care to implement on top of part (i) , optimal objective value is $8,682