Question 378807
Amount of gas = (Distance)/(rate of gas consumption).  Then amount of gas = (380 km)/(9 km/liter) = 42.22 liters.

Total cost = (42.22 liters)*($36.50 /liter) = $1541.03.  

BTW, are you sure you're going to La Union from Manila? Or cross-country?  :D