Thinkpython书籍练习

Question

price_book = 24.95
number_books = 60.0/100
first_book_cost = 3
additional_copy = 0.75
discounted_books = price_book*number_books
total_price = discounted_books*(first_book_cost*1+additional_copy*(60-1))

print "The total price of 60 copies of book is %s$."%(total_price)

Suppose the cover price of a book is $24.95, but bookstores get a 40% discount. Shipping costs $3 for the first copy and 75 cents for each additional copy. What is the total wholesale cost for 60 copies?

谁能告诉我我做错了什么！！答案应该是523.23，而我得到的是707.33！提前谢谢你！

Answer 1

这里的问题陈述得不是很清楚。

他们是否在订单总额/图书成本等方面获得40%的折扣？

我模拟了我以为你问的问题，但我不能接近523.23。

事实上，所有的书都打了四折到14.97x60，不包括运费就到了898.20。

#first book costs 24.95
book_cost = 24.95

#they order 60 books
number_books = 60

#shipping cost of book 1 is $3
ship1_cost = 3

#shipping cost for subsequent books is 0.75
ship_cost = 0.75

#print (book 1 + shipping) + (subsequent book qty (59) * unit price) + (subsequent shipping costs (59 * 0.75))
print (book_cost + ship1_cost + ((number_books - 1) * book_cost) + ((number_books - 1) * ship_cost))

Answer 2

有时书籍，尤其是免费的书籍，会有打字错误和错误。

根据您提供的信息，总批发成本应为：

>>> cover_price_of_book = 24.95
>>> shipping_cost_for_first_book = 3.00
>>> shipping_cost_for_additional_books = 0.75
>>> wholesale_cost_of_book = 24.95 * .60
>>> total_number_of_books = 60
>>> total_wholesale_cost = (wholesale_cost_of_book * total_number_of_books) + (shipping_cost_for_first_book + (total_number_of_books - 1) * shipping_cost_for_additional_books)
total_wholesale_cost
945.4499999999