Question

Три рыбака ловили рыбу и складывали её в одно ведро. Наступила ночь, и рыбаки легли спать. Ночью проснулся один рыбак, пересчитал рыбу в ведре, треть её поджарил и съел, затем снова лёг спать. Потом проснулся второй рыбак, тоже пересчитал рыбу, треть от неё поджарил, съел и лёг спать. После него тоже самое сделал третий рыбак. Утром рыбаки проснулись и увидели, что в ведре осталось 8 рыб. Сколько рыб там было вечером?

Answer 1

1) 8:2*3=12 (р.) - осталось после второго рыбака
2) 12:2*3= 18 (р.) - осталось после первого рыбака
3) 18:2*3=27 (р.) - было в ведре вечером
Ответ: 27 рыб было в ведре вечером.

Answer 2

The Problem

Three fishermen were catching fish and putting them in one bucket. They went to sleep at night. One of the fishermen woke up, counted the fish in the bucket, took one-third of them, cooked and ate them, and then went back to sleep. The second fisherman woke up, counted the fish in the bucket, took one-third of them, cooked and ate them, and then went back to sleep. The third fisherman did the same. In the morning, the fishermen woke up and saw that there were 8 fish left in the bucket. The question is: how many fish were in the bucket in the evening?

Solution

To solve this problem, we need to work backward. Since there were 8 fish left in the bucket in the morning, we can determine the number of fish in the bucket after each fisherman took one-third of them.

Let's denote the number of fish in the bucket after the first fisherman took one-third as x. After the second fisherman took one-third of the remaining fish, the number of fish in the bucket would be (2/3)x. Finally, after the third fisherman took one-third of the remaining fish, the number of fish in the bucket would be (2/3)((2/3)x) = (4/9)x.

According to the problem, there were 8 fish left in the bucket in the morning. So, we can set up the equation (4/9)x = 8 and solve for x.

To find the value of x, we can multiply both sides of the equation by 9/4:

(4/9)x * (9/4) = 8 * (9/4)

Simplifying the equation:

x = 18

Therefore, there were 18 fish in the bucket in the evening.

Answer

There were 18 fish in the bucket in the evening.