Parts Purchasing: Comparing Pack Sizes and Landed Cost

Parts Purchasing: Comparing Pack Sizes and Landed Cost

Original quantitative topic practice in English. All 24 questions are included in a shuffled order. Each question supplies its own data and model assumptions; use only those assumptions. Choose one answer. Practice target: 20/24, not an official examination pass mark. Keep full intermediate precision. These exercises cover the calculation scope in the title; they do not constitute a full Red Seal examination, trade qualification, site design or operating specification.
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A job needs 104 items. Supplier A sells packs of 12 for $45 per pack with $18 freight per order. Supplier B sells packs of 20 for $70 per pack with $30 freight. Buy whole packs only. There are no discounts or taxes. Landed order cost includes all purchased items and freight, including surplus stock. Calculate the packs required from A. Keep intermediate values unrounded; round the final answer to 4 decimal places if needed.