Brian Ltd produces three products which have the following unit contributions and labour requirements. Product Unit contribution Labour requirement Hours Scratch 6 2. Purr 7 3 Buzz 8 3 Due to industrial action only 2,600 labour hours are available in control period 13, when expected demand is 700 units of each product. Fixed costs are K1,700 for the period. What is the profit-maximising product mix and what is the maximum profit at the profit-maximizing product mix? O Scratch: 700 Purr; 166 Buzz and K1,300 700 Scratch; 0 Purr: 400 Buzz and K5,700 166 Scratch: 400 Purr; 0 Buzz and K7,400 700 of each product and K4,528