Buy five children s encyclopedias and get one free, my mother bought six copies at a time, 30 yuan e

Buy three and get one free, that's four, pay for three. Buy one more and you'll have five. Actually paid for four copies. The price of a cheaper copy is 30 yuan.

Buy 5 books and get one free, buy 6 copies, 30 yuan each, which is equivalent to spending 180 yuan, and 6 copies are also free copies, that is, 180 7=, that is, each book is cheap.

Buy 5 get 1 free.

Each book is 5 yuan cheaper.

Summary. 5 + 10 + 50 + 100 + 200) 40 = 365 40 = 14600 yuan.

Children's encyclopedia 40 yuan for 1 book, how much does it cost to buy 5 copies, buy 10 copies, 50 copies, 100 copies, 200 copies? 1 Please mouth.

Buy five copies for 200 yuan.

Shaoliang where is the key to Qike encyclopedia 40 yuan for 1 copy, how much yuan does it cost to buy 5 copies, buy 10 copies, 50 copies, 100 copies, 200 copies? 1. Please solve the problem, because 1 book is 40 yuan, so if you buy five copies, 5 40 = 200 yuan, buy 10 copies, 10 40 = 400 yuan, buy 50 copies, 50 40 = 2000 yuan.

Buy 100 copies, 100 40 = 4000 yuan, buy 200 copies, 200 40 = 8000 yuan.

What about the total price, teacher?

Does it all add up.

5 + 10 + 50 + 100 + 200) 40 = 365 40 = 14600 yuan.

Buy 4 children's encyclopedias, get 1 book, a total of 5 copies, but as long as you pay 4 copies, so 35 yuan is simple x 4 140 yuan (you can get 5 copies).

20 Ben 5 Ben 4.

Then 140 yuan x 4 times 560 yuan.

Answer: It costs a total of 560 yuan to buy 20 cavity books.

The encyclopedia costs 45 yuan a book, buy five copies and get one free, and 360 yuan can buy 9 copies.

An encyclopedia is a reference book that provides an overview of all categories of human knowledge or a certain category of knowledge. Encyclopedias surpass other types of reference books in size and content. The main function of an encyclopedia is to provide people with the necessary knowledge and facts, and its completeness lies in the fact that it contains almost all kinds of reference book elements and covers all aspects of knowledge.

It is known as a "university without walls". An encyclopedia is a collection of knowledge, an overview of a wide range of knowledge categories. Whether or not there is an excellent and comprehensive encyclopedia has become one of the indicators to measure the level of a country's scientific and cultural development.

The style of an encyclopedia includes many aspects. Including the design of the article name, the outline of the article writing, the writing format of the copywriter, the requirements for the accompanying figures, the rules for writing and translating foreign languages, and the format of the finished book. Among them, the "Soviet Encyclopedia" is the most detailed style of the existing encyclopedia, and its third edition is written in a detailed and meticulous style, which is very comprehensive, with a total of 200,000 words equivalent to Chinese characters.

For example, the medical category is divided into disease items, pathology items, method items, drug items, pharmacy items, medical device items, sanatorium items, medical machinery items, medical occupation items, etc.

Summary. Hello, please don't worry, I have seen your problem and have started working on it, but it will take a little time to solve the problem, sort out the answer and type it out, please be patient, in a moment, I will give you the answer.

Mom buys storybooks for 90 yuan, and buys 3 free for 5 yuan each, so how many storybooks can be bought in total.

Hello, please don't be anxious, I have seen your problem and have started to deal with it, but it will take a little time to solve the problem, sort out the answer and type it out, please be patient, and I will give you the answer in a moment.

Hello, according to the title, the real stupidity is that you can buy 4 copies for every 15 yuan (because you give away one), so 90 15 is a loss of 6, so you can buy a total of 4 times 6 24 copies with empty brothers.

Summary. 700 65 = 10 (sets).50 (yuan) 50 37 = 1 (set).13 (yuan) 10 + 1 = 11 (sets) Answer: 700 yuan can buy back up to 11 sets of books.

One set of encyclopedias is 37 yuan + two sets are 65 yuan + the teacher brought 700 yuan + how many sets of books can be bought back at most.

700 65 = 10 (sets).50 (yuan) 50 37 = 1 (set).13 (yuan) 10 + 1 = 11 (set of Huai Bo) Answer: 700 yuan can buy back 11 sets of books at most.

I'm glad to be able to provide you with this answer, if you are satisfied with my service, please move your little hand to make a fortune, help me like it, thank you, I wish you a happy life, and Wan Meng is victorious.

15 children in Luohe went to the supermarket to buy orange juice The supermarket has three sales plans: two yuan per bottle, three flat five yuan, five flat eight yuan, how to buy the most money-saving.

There are three sales plans in the supermarket: two yuan per bottle, five yuan for three holes, five yuan for eight yuan, how to buy the most money-saving Sun Shuqing to buy 5 bottles of 8 yuan, buy 3 times to save the most money.

63 5 = 12 (Ben)....3 (yuan), 5-3=2 (lack of state of Yu pants yuan);

A: You can buy up to 12 copies, and you can buy another one with an additional $2

Therefore, the answer to the case of Fu Xuyuan is: 12, 2

8 yuan per book, a total of 5 books:

8 5 = 40 (yuan).