1 mile = 1.6 km
Jack is going on a road trip. It would take him 250 miles to reach his destination. He calculated that gas would cost him $1.40 per liter. His tank holds up to 78 liters. If he goes an average of 50 km/hr and stops to refill his gas tank completely every 2 hours along the way, how much money would he have to spend on gas?