Question

Одиннадцать одинаковых мышек за 7 минут съедают больше, чем 1600 зёрнышек, а двенадцать таких же мышек за то же время съедают меньше, чем 1760 зёрнышек. Сколько зёрнышек съедают семь мышек за 1 минуту?

Answer 1

Возьмём 20 зёрн/м 1 мышка
11*7*20 = 1540
12*7*20 = 1680
Не подходит
Возьмём 21 зёрн/м 1 мышка
11*7*21 = 1617
12*7*21 = 1744
Подходит

(осталось только поделить
я думаю это каждый может(-_-))

Answer 2

Calculating the Number of Grains Eaten by Seven Mice in One Minute

To calculate the number of grains eaten by seven mice in one minute, we can use the given information about the consumption of grains by eleven and twelve mice in seven minutes.

Given: - Eleven mice eat more than 1600 grains in 7 minutes. - Twelve mice eat less than 1760 grains in 7 minutes.

Let's calculate the number of grains eaten by seven mice in one minute.

Calculation:

- Eleven mice eat more than 1600 grains in 7 minutes. - Twelve mice eat less than 1760 grains in 7 minutes.

Using this information, we can calculate the average consumption of grains by one mouse in 7 minutes and then derive the consumption for one minute.

Step 1: Calculate the average consumption of grains by one mouse in 7 minutes. - For eleven mice: More than 1600 grains / 11 mice = More than 145 grains per mouse in 7 minutes. - For twelve mice: Less than 1760 grains / 12 mice = Less than 147 grains per mouse in 7 minutes.

Step 2: Calculate the consumption of grains by seven mice in one minute. - For eleven mice: More than 145 grains / 7 minutes = More than 20.71 grains per mouse in 1 minute. - For twelve mice: Less than 147 grains / 7 minutes = Less than 21 grains per mouse in 1 minute.

Therefore, seven mice eat between 20.71 and 21 grains in one minute.