alleryQuantities Q: buyer rows, item columns. Prices P: item rows, shop columns. What does (QP)₂₁ give?
AItem 2's price at shop 1
BBuyer 2's cost at shop 1
CBuyer 1's cost at shop 2
DItem 1's price at shop 2
Answer & Solution
Correct answer: B. Buyer 2's cost at shop 1
Row 2 of quantities combined with column 1 of prices gives buyer 2's total cost at shop 1.
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