Tarsands Oil make two blends of fuel by mixing three crude oils. The costs and daily availability of the oils are:

Tarsands sell each litre of Blend 1 for $1.00 and each litre of Blend 2 for $1.20. Long-term contracts require at least 10,000 litres of each blend to be produced. What should Tarsandsdo?

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Cost ($Aitre) Amount available litres) Oil 0.33 0.40 0.48 5,000 10,000 15,000 The requirements of the blends of fuel are: Blend 1 at least 30% of A at most 45% of B at least 25% of C at most 35% of A at least 30% of B at most 40% of C Blend 2