Question

Две одинаковые гигантские устрицы, добывая себе пищу, отфильтровали 120 литров воды. Одна из них добывала корм 5 часа,а другая - 3 часа. Сколько литров воды отфильтровала каждая из них?

Answer 1

1) 120*5:(5+3)=75 (л) отфильтровывает 1я устрица за 5 часов

2) 120*3:(5+3)=45 (л) -отфильтровывает 2я устрица за 3 часа

ответ: 75литров, 45 литров

Answer 2

5+3=8(ч)-всего питались обе устрицы. 120:8=15(л)-отфильтровывала каждая устрица в час. 5*15=75(л)-отфильтровала первая устрица. 3*15=45(л)-отфильтровала вторая устрица.

Answer 3

Calculation of Filtered Water by Each Giant Oyster

To calculate the amount of water filtered by each giant oyster, we need to consider the time each oyster spent filtering water and the total amount of water filtered.

According to the information provided, one oyster filtered water for 5 hours, while the other oyster filtered water for 3 hours. The combined total of filtered water by both oysters is 120 liters.

To find out how much water each oyster filtered, we can set up a proportion:

5 hours : x liters = 3 hours : (120 - x) liters

Solving this proportion will give us the amount of water filtered by each oyster.

Let's solve the proportion:

5 hours / 3 hours = x liters / (120 - x) liters

Cross-multiplying:

5 hours * (120 - x) liters = 3 hours * x liters

Simplifying:

600 - 5x = 3x

Combining like terms:

8x = 600

Dividing both sides by 8:

x = 75

Therefore, one oyster filtered 75 liters of water, while the other oyster filtered 45 liters of water.

Answer:

Each oyster filtered a different amount of water: - One oyster filtered 75 liters of water. - The other oyster filtered 45 liters of water.