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Consult figure $9\mathrm{.}2($both $7$th and $8$th editions$)$ in the prescribed book. From the figure can be seen that:

Class A inventory items represent about $10\%$ of the total number of items, but about $70\%$ of the rand value.

Class B inventory items represent $20\%$ of the total number of items, but only about $40\%$ of

the rand value.

Class C inventory items include a full $50\%$ of all items, but represent $100\%$ of the

rand value.

Class C inventory items include a full $100\%$ of all items, but represent only about $10\%$ of the

rand value.