On a journey of 960 kilometres, David’s car used 91 litres of petrol. Given that 4.55 litres = 1 gallon, calculate the number of kilometres per gallon that David’s car used on the journey.
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Total distance=960km
Amount of petrol used=91litres
1 gallon=4.55litres
91 litres=4.55(91)gallons
=414.05gallons
No. of kilometres travelled per gallon=960/414.05
=2.318km.
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