Question

create a PYTHON program that will determine the cost per 3" serving for a giant sub sandwich you will be ordering for a get-together with your friends.

Within main(), get the input of the length in inches for the sub and the cost.

Create function named numServings() that will receive the length in inches and return the number of servings. Each 3" is considered serving. Servings should be a whole number, so you will need to find a way to drop the fraction and return only the integer portion, you should call this function from within main() and return the number of servings to main().

Then create a function named costPerServing(). This function which will receive both the cost of the giant sub and the number of servings. This function will return the cost per serving . Call the function within main().

Then within main(), print cost per serving using this format $2.67 print the number of servings!, then put the code in main() inside a loop, the loop will ask the user if they want to enter information for another sub sandwich. if so, data is requested and everything including the print statements process again!

Answer 1

Note: Variable names and function names are used in such a way for a better understanding. These can be changed according to the user's choice. Please refer to code snippets for a better understanding of comments and indentations.

IDE Used: PyCharm

Program Code

# function to get number of serving
def numServing(len_inch):
    num_serve = len_inch//3

    return num_serve

# function to get cost per serving
def costPerServing(sand_cost, num_serve):
    cost_per_serve = sand_cost/num_serve

    return cost_per_serve

# main function
def main():

    # variable to ask if order more sandwich
    more_sub = 'y'

    # loop until user input 'n'
    while more_sub == 'y':
        print("Give Sandwich Order Details\n")

        # promt user for sandwich length and cost
        len_inch = float(input("Sandwich length in inches : "))
        sand_cost = float(input("Sandwich cost : $"))

        # call function to get number of serve and cost per serve
        num_serve = int(numServing(len_inch))
        cost_per_serve = costPerServing(sand_cost, num_serve)

        # display the final values
        # i.e number of serve and cost of each serve
        print("Number of Serving : ", num_serve)
        print("Cost per serving : $%0.2f" %cost_per_serve)

        # prompt to know if want more sub
        more_sub = input("Request another sub ? (y/n) : ")
        if more_sub == 'n':
            print("Thank You for your Sandwich order!")
        print("\n")


# main declaration
if __name__=="__main__":
    main()

Code Snippets

Sample Input Output