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) O $1.83 /gal O $7.82 /gal O $3.90/gal O $7.60 /gal O $1.94 /gal