Leila and her friends want to rent a car for their one-day trip that is 150 kilometers long each way. The first option for a car rental costs $50 a day, excluding gasoline. The second option costs $90 a day including gasoline. A liter of gasoline can cover 15 kilometers and costs $0.90 per liter. Their car rental will need to carry them to and from their destination. How much will they save if they will choose the first option rather than the second one?
How far will Leila and her friends travel? ** Leila and her friends will travel a total distance of 150 x 2 = <<150*2=300>>300 kilometers back-and-forth.
How many liters of gasoline will they need? ** They will need 300/15 = <<300/15=20>>20 liters of gasoline for this trip.
How much will they pay for the gasoline? ** So, they will pay $0.90 x 20 = $<<0.90*20=18>>18 for the gasoline.
How much will the first option cost? ** Thus, the first option will costs them $50 + $18 = $<<50+18=68>>68.
How much will they save if they will choose the first option rather than the second one? ** Therefore, they can save $90 - $68 = $<<90-68=22>>22 if they choose the first option.
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