Question

21 мышь съедает 21 одинаковый кусочек сыра за 21 минуту. За сколько минут съедают 7 таких же кусочков сыра 7 мышей?

Answer 1

Ответ:

21 минут

Пошаговое объяснение:

1 мышь на один кусочек тратит 21 минуту (это из первого предложения)

соответствено 7 мышей и 7 кусочков-значит 1 кусочек на одну мышь ,поэтому 21минута

Answer 2

Ответ: 0, потому что сыр не ест мышей

Answer 3

Problem Analysis

To solve this problem, we need to determine how long it takes for 7 mice to eat 7 identical pieces of cheese if 21 mice can eat 21 identical pieces of cheese in 21 minutes.

Solution

If 21 mice can eat 21 pieces of cheese in 21 minutes, it means each mouse eats 1 piece of cheese in 21 minutes. Therefore, to find out how long it takes for 7 mice to eat 7 pieces of cheese, we can use the following calculation:

Time taken for 7 mice to eat 7 pieces of cheese = Time taken for 1 mouse to eat 1 piece of cheese = 21 minutes

So, it will take 7 mice 21 minutes to eat 7 pieces of cheese.

Therefore, 7 mice can eat 7 pieces of cheese in 21 minutes.

Conclusion

Given the information that 21 mice can eat 21 pieces of cheese in 21 minutes, it follows that 7 mice can eat 7 pieces of cheese in 21 minutes.