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On a trip , a motorist purchased gasoline as follows : 56 litres at $0.99 per litre;64 litres at $1.065 per litre at $1.015 per litre;70 litres at $1.015 per litre ; and 54 litres at $1.045 per litre
What was the average number of litres per purchase

On a trip a motorist purchased gasoline as follows 56 litres at 099 per litre64 litres at 1065 per litre at 1015 per litre70 litres at 1015 per litre and 54 lit class=

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