In the spring of 2008, petrol cost £1.029 per litre in London. On the same day, the exchange rate was $1 = £0.498. What was the

Question

In the spring of 2008, petrol cost £1.029 per litre in London. On the same day, the exchange rate was $1 = £0.498. What was the price of London petrol in dollars ($) per gallon? (1 gal = 3.7854 L)
$1.83 /gal
$7.82 /gal
$3.90 /gal
$7.60 /gal
$1.94 /gal

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