Question

Решить задачу тремя способами.Столовая расходовала одну неделю по 70 литров молока в день,а другую неделю-по 80 л. молока в день.Сколько литров молока израсходовали за две недели,если столовая работала 5 дней в неделю?

Answer 1

1) 70*7=490(л) - расход за одну неделю
2) 80*7=560(л) - расход за другую неделю
3) 490+560=1050(л) - расход за две недели
1) 70*5=350(л) - расход за одну пятидн. неделю
2) 80*5=400(л) - расход за другую пятидн. неделю
3) 350+400=750(л) - расход за две пятидн. недели
1) 70*6=420(л) - расход за одну шестидн. неделю
2) 80*6=480(л) - расход за др. шестидн. неделю
3) 420+480=900(л) - расход за две шестидн. неделюЕсли столовая работала 5 дней в неделю
1)70*5=350 (литров)- 1 неделя
2)80*5=400(литров)- 2 неделя
3) 350+400=750 (литров)- всего
Если столовая работала по 6 дней в неделю
1)70*6=420 (литров)- 1 неделя
2)80*6=480 (литров)- 2 неделя
3)420+480=900 (литров)- всего

Answer 2

Problem Analysis

To solve this problem, we need to calculate the total amount of milk consumed by the cafeteria over two weeks. In the first week, the cafeteria consumed 70 liters of milk per day, and in the second week, it consumed 80 liters of milk per day. The cafeteria operates for 5 days each week.

Solution 1: Using Basic Arithmetic

We can calculate the total amount of milk consumed over two weeks by multiplying the daily consumption by the number of days in each week and then adding the results for both weeks.

In the first week, the cafeteria consumed 70 liters of milk per day for 5 days, so the total consumption for the first week is 70 * 5 = 350 liters.

In the second week, the cafeteria consumed 80 liters of milk per day for 5 days, so the total consumption for the second week is 80 * 5 = 400 liters.

Therefore, the total amount of milk consumed over two weeks is 350 + 400 = 750 liters.

Answer: The cafeteria consumed 750 liters of milk over two weeks.

Solution 2: Using a Formula

We can also use a formula to calculate the total amount of milk consumed over two weeks. The formula is:

Total consumption = (Daily consumption in the first week * Number of days in the first week) + (Daily consumption in the second week * Number of days in the second week)

Plugging in the values, we get:

Total consumption = (70 * 5) + (80 * 5) = 350 + 400 = 750 liters.

Answer: The cafeteria consumed 750 liters of milk over two weeks.

Solution 3: Using Division and Multiplication

Another way to solve this problem is by calculating the total consumption for each week separately and then adding the results.

In the first week, the cafeteria consumed 70 liters of milk per day for 5 days, so the total consumption for the first week is 70 * 5 = 350 liters.

In the second week, the cafeteria consumed 80 liters of milk per day for 5 days, so the total consumption for the second week is 80 * 5 = 400 liters.

Therefore, the total amount of milk consumed over two weeks is 350 + 400 = 750 liters.

Answer: The cafeteria consumed 750 liters of milk over two weeks.

Please let me know if you need any further clarification.