1 Pasco (Pty) Ltd manufactures a tooth paste for treating tooth ache, trade-named 'fluoride rich paste', using three ingredients: calcium carbonate, calcium phosphate and Silica. The standard material usage and cost of 100ml of fluoride rich paste are as follows. Calcium carbonate Calcium phosphate Silica 5Lts at M6 per Lt 4Lts at M10 per Lt 3Lts at M5 per Lt 72 M 30 40 15 85 RASEK In a particular period, 34 units of fluoride rich paste' were produced from 120mls of calcium carbonate, 150mls of calcium phosphate and 126mls of Silica. Required: Calculate a) mix, and (4marks) b) Yield variances. c) Explain One way by which variance analysis may help a business (4marks) (2marks)