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The average petrol consumption of a vehicle is 1 gallon per 35 km. The cost of 1 litre of petrol is $49. Fund the cost of petrol for a journey of 280 km.
(take 1 gallon=4.5 litres)

Answer :

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Step-by-step explanation:

Total petrol consumption of the journey=

Total distance travelled ÷ Average petrol consumption

[tex] = 280 \div 35 \\ = 8 \: gallons[/tex]

Given 1 gallon = 4.5 litres,

[tex]8 \: gallons \: = 8 \times 4.5 \\ = 36 \: litres[/tex]

Total cost of petrol for this particular journey = Petrol consumed x cost of 1 litre of petrol

[tex] = 4.5 \times 49 \\ = 220.50 \: dollars[/tex]

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