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Instructions

In this exercise, you will write some code to help you prepare to buy a vehicle.

You have three tasks, one to determine if you will need one to help you choose between two vehicles, determine which license you will need and one to estimate the acceptable price for a used vehicle.

1. Compute whether or not you can afford the monthly payments on a given car

The auto dealers in your town are all running a five year, 0% interest promotion that you would like to take advantage of. But you are not sure if you can afford the monthly payments on the car you want.

Implement the canIBuy(vehicle:price:monthlyBudget:) function that takes the following arguments:

  • vehicle - The name of the vehicle you want to buy.
  • price - The price of the vehicle you want to buy.
  • monthlyBudget - The amount of money you can afford to pay each month.

The function should return the following message based on the following conditions:

  • If the price of the vehicle is less than or equal to the monthly budget, return the message "Yes! I'm getting a <vehicle>".
  • If the price of the vehicle is 10% above your monthly budget, return the message "I'll have to be frugal if I want a <vehicle>".
  • If the price of the vehicle is more than 10% above your monthly budget, return the message "Darn! No <vehicle> for me".
canIBuy(vehicle: "1974 Ford Pinto", price: 516.32, monthlyBudget: 100.00)
// returns "Yes! I'm getting a 1974 Ford Pinto"
canIBuy(vehicle: "2011 Bugatti Veyron", price: 2_250_880.00, monthlyBudget: 10000.00)
// returns "Darn! No 2011 Bugatti Veyron for me"
canIBuy(vehicle: "2020 Indian FTR 1200", price: 12_500, monthlyBudget: 200)
// returns "I'll have to be frugal if I want a 2020 Indian FTR 1200"

2. Determine the type of drivers license you will need

You have decided to buy a used vehicle and you need to determine what type of drivers license you will need to operate it.

Implement the licenseType(numberOfWheels:) function that takes the argument numberOfWheels which is the number of wheels on the vehicle you want to buy.

The function should return the following message based on the following conditions:

  • If the number of wheels is 2 or 3, return the message "You will need a motorcycle license for your vehicle".
  • If the number of wheels is 4 or 6, return the message "You will need an automobile license for your vehicle".
  • If the number of wheels is 18, return the message "You will need a commercial trucking license for your vehicle".
  • If the number is any other number, return the message "We do not issue licenses for those types of vehicles".
licenseType(numberOfWheels: 2)
// returns "You will need a motorcycle license for your vehicle"
licenseType(numberOfWheels: 6)
// returns "You will need an automobile license for your vehicle"
licenseType(numberOfWheels: 18)
// returns "You will need a commercial trucking license for your vehicle"
licenseType(numberOfWheels: 0)
// returns "We do not issue licenses for those types of vehicles"

3. Calculate an estimation for the price of a used vehicle

Now that you made your decision you want to make sure you get a fair price at the dealership. Since you are interested in buying a used vehicle, the price depends on how old the vehicle is. For a rough estimate, assume if the vehicle is less than 3 years old, it costs 80% of the original price it had when it was brand new. If it is at least 10 years old, it costs 50%. If the vehicle is at least 3 years old but not older than 10 years, it costs 70% of the original price.

Implement the calculateResellPrice(originalPrice:yearsOld:) function that takes the arguments originalPrice which holds the vehicles original price, and yearsOld which holds the age of the vehicle in years. The function should return the resell price of the vehicle.

calculateResellPrice(originalPrice: 1000, yearsOld: 1)
// returns 800
calculateResellPrice(originalPrice: 1000, yearsOld: 5)
// returns 700
calculateResellPrice(originalPrice: 1000, yearsOld: 15)
// returns 500