Answer:
1. Selling price per composite unit = Price of desk unit * (Ratio of desk unit) + Price of chair * (Ratio of chair)
= $1250*(3) + $500*(2)
= $3,750 + $1,000
= $4,750
2. Variable costs per composite unit = Variable cost per desk unit * (Ratio of desk unit) + Variable cost per chair * (Ratio of chair)
= $750*(3) + $250*(2)
= $2,250 + $500
= $2,750
3. Break even point in composite units = Fixed costs / (Composite selling price - Composite variable cost)
= $120,000 / ($4750 - $2750)
= $120,000 / $2000
= 60 units
4. Number desk units sold at break even point = 60 composite units* 3 per composite unit = 180 units
Number of chairs sold at break even point = 60 composite units * 2 per composite unit = 120 units