A chemical company is using the following items at its factory. The annual consumption of each of the items and the cost per unit of each of the items has been given. Classify the items into A, B and C categories. Item Description Annual Consumption Cost per unit (units) (Rs) Hydrochloric Acid 4500 4 / litre Benzene 650 9 / kg Packing Drums 2000 15 per drum Lac 55 10 / kg Wax 4000 1 / kg Ethylene 7000 5.75 / kg Chlorine 2500 5.50 / kg Methyl Alcohol 4000 11 / litre Denatured Spirit 75 12 / litre Sodium Acetate 100 13 / kg Castor Oil 100 35 / kg Commercial Camphor 100 6 / kg Commercial gum 25 5 / kg Amide 2500 1 / kg Corrugated cartons 50 10 / piece Linseed Oil 100 90 / kg Lemon grass oil 60 150 / kg Commercial talcum powder 200 25 / kg Red oxide 900 5 / kg Xylene 1000 12 / kg Toluene 400 7 / kg Ethyl acetate 50 13 / kg

Kerosene oil 100 20 / liter Petroleum jelly 100 25 / kg Coal tar 50 12 / kg Refined charcoal 150 35 / kg Questions: 1) Categorize the above items into A, B, and C categories. Show all the detailed steps of working. Draw graph as well. 2) Discuss the details of four other inventory control techniques 3) Explain the advantages and disadvantages of each of these techniques