Product Mix Decision Holt Company makes three products in a single facility. Data concerning these products follow: Products A B C Selling price per unit $67.90 $5110 $4390 Direct materials $12.10 $10.30 $8.60 Direct labour $14.10 $8.00 $6.30 Variable manufacturing overhead $2.60 $2.20 $1.80 Variable selling cost per unit $2.50 $2.20 $2.50 Mixing minutes per unit 2.70 3.30 4.70 Monthly demand in units 1,000 3,000 3,000 The mixing machines are potentially a constraint in the production facility. A total of 25,800 minutes are available per month on these machines. Direct labour is a variable cost in this company. Required: a) How many minutes of mixing machine time would be required to satisfy demand for all four Droducts