Question 10 • Math 3
The wooden containers require 7,560 ÷ 180 = 42 containers, costing 42 × $0.70 = $29.40. The plastic containers require 7,560 ÷ 126 = 60 containers, costing 60 × $0.40 = $24.00. Plastic costs $29.40 − $24.00 = $5.40 less, so the plastic containers should be used; this matches choice C.
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