Question

В школьный буфет завезли пирожки.За первую перемену купили 3/11 всех пирожков за вторую перемену 7/16 остатка а за третью перемену последние 54 пирожка.Сколько всего пирожков привезли в школьный буфет?СРОЧНОС решением

Answer 1

Пусть х=привезли пирожков.
После второй перемены осталось х-(3/11)х=(8/11)х пирожков
За вторую перемену купили 7/16*8/11)х=(7/22х) пирожков
За обе перемены купили (3/11)х+(7/22)х=(13/22)х пирожков
Осталось х-(13/22)х=(9/22)х 
(9/22)х=54
х=54:9/22=132
Ответ: 132 пирожка.

Answer 2

Calculation of the Total Number of Pies

To calculate the total number of pies brought to the school cafeteria, we need to add up the number of pies purchased during each break.

Let's break down the information given:

- During the first break, 3/11 of all the pies were purchased. - During the second break, 7/16 of the remaining pies were purchased. - During the third break, the remaining 54 pies were purchased.

To find the total number of pies, we'll work backward from the third break to the first break.

1. Third Break: - The remaining pies after the second break were 54. 2. Second Break: - The remaining pies after the second break were 54 + (54 * (16/7)). 3. First Break: - The total number of pies brought to the cafeteria was 54 + (54 * (16/7)) + (54 + (54 * (16/7))) * (11/3).

Now, let's calculate the total number of pies using the given information:

Total number of pies = 54 + (54 * (16/7)) + (54 + (54 * (16/7))) * (11/3).

Using this formula, we can calculate the total number of pies.