W3D2 (question no 3) part 4 not able to understand
The question has 5 parts :
- Hotel_cost (takes days as an argument)
- Plane_ride_cost (takes city as an argument)
- Rental_car_cost (takes days as an argument)
- Trip_cost (takes days and city as an argument)
- Trip_cost with spending money (takes days, city and spending money as an argument)
So, for hotel_cost you have define function with days as input argument, which is not depended on city it is calculated by given formula.
def hotel_cost(days): total_hotel_cost = 140*days return total_hotel_cost
Now, for plane_ride_cost you need city as input argument so you have to use if-else condition here.
def plane_ride_cost(city): if city == "Charlotte": final_plane_ride_cost=183 elif city == "Tampa": final_plane_ride_cost=220 elif city == "Pittsburgh": final_plane_ride_cost=222 elif city == "Los Angeles": final_plane_ride_cost=475 return final_plane_ride_cost
For rental_car_cost you need days as input because rental car cost only depends on days as suggested in question.
def rental_car_cost(days): rental_car_cost = 40*days if days >= 7: discount_cost = 50 total_rental_car_cost = rental_car_cost-50 elif days >=3 and days <= 7: discount_cost = 20 total_rental_car_cost = rental_car_cost-20 return total_rental_car_cost
Now for Trip_cost you need 2 arguments i.e. days and city, so for this you already created functions above, you just need to call those functions in Trip_cost function.
def trip_cost(city,days): sum = rental_car_cost(days)+plane_ride_cost(city)+hotel_cost(days) return sum
Now in last you only need to modify Trip_cost with addition of one more argument of spending money, take it as a default value as 0.
def trip_cost(city,days,spending_money=0): sum = rental_car_cost(days)+plane_ride_cost(city)+hotel_cost(days)+spending_money return sum