A client orders 2 units of P1 and 1 unit of P2, so A = [2 1]. Each unit of P1 needs 3 units of R1 and 1 unit of R2; each unit of P2 needs 2 units of R1 and 4 units of R2. How much raw material does the order need?
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Hint
Multiply the row of orders by each column of material needs.
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Answer: A. R1 = 8, R2 = 6
With B = [3 1; 2 4] (rows P1, P2; columns R1, R2), AB = [2 × 3 + 1 × 2 2 × 1 + 1 × 4] = [8 6], so the order needs 8 units of R1 and 6 units of R2.