Question

Рыбаки ловили первые 3 дня недели по 100 ц рыбы в день, а следующие 3 дня - по 20 ц в день. Сколько всего килограммов рыбы поймали рыбаки за 6 дней ? Рыши задачу двумя способами.

Answer 1

3*100+3*20=300+60=360ц
3*(100+20)=3+120=360ц

Answer 2

100 умножаем на 3 потом 3 умножаем на 20   и всё это складываем

Answer 3

Problem Analysis

The fishermen caught 100 centners (1 centner = 100 kilograms) of fish per day for the first 3 days of the week and 20 centners per day for the next 3 days. We need to calculate the total weight of fish caught by the fishermen in 6 days.

Solution 1: Using Centners

To solve this problem, we can calculate the total weight of fish caught in centners and then convert it to kilograms.

The fishermen caught 100 centners of fish per day for the first 3 days, so the total weight of fish caught in centners for the first 3 days is: 3 days * 100 centners/day = 300 centners

The fishermen caught 20 centners of fish per day for the next 3 days, so the total weight of fish caught in centners for the next 3 days is: 3 days * 20 centners/day = 60 centners

Therefore, the total weight of fish caught in centners for 6 days is: 300 centners + 60 centners = 360 centners

To convert centners to kilograms, we multiply by 100: 360 centners * 100 kilograms/centner = 36,000 kilograms

Answer: The fishermen caught a total of 36,000 kilograms of fish in 6 days.

Solution 2: Using Kilograms

Alternatively, we can calculate the total weight of fish caught directly in kilograms.

The fishermen caught 100 centners of fish per day for the first 3 days, so the total weight of fish caught in kilograms for the first 3 days is: 3 days * 100 centners/day * 100 kilograms/centner = 30,000 kilograms

The fishermen caught 20 centners of fish per day for the next 3 days, so the total weight of fish caught in kilograms for the next 3 days is: 3 days * 20 centners/day * 100 kilograms/centner = 6,000 kilograms

Therefore, the total weight of fish caught in kilograms for 6 days is: 30,000 kilograms + 6,000 kilograms = 36,000 kilograms

Answer: The fishermen caught a total of 36,000 kilograms of fish in 6 days.

Both solutions yield the same result.