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Mathematics, 24.12.2020 19:00 jennainglish

Four ingredients costing $320 per kg, $240 per kg, $160 per kg and $80 per kg are mixed so that their masses are in the ratio 4:1:3:2. Calculate the average cost per kg of the mixture.

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Four ingredients costing $320 per kg, $240 per kg, $160 per kg and $80 per kg are mixed so that thei...

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