Question

Двумя насосами накачали315л воды.один из них работал 5 мин.,другой-4мин.Сколько воды накачали каждым насосом,еслиоба насоса накачали одинаковое количество воды в минуту

Answer 1

1)5+4=9(мин)-Общее время работы.
2)315:9=35(л)-качал каждый насос в минуту.
3)35*5=175(л)-накачал первый насос.
4)35*4=140(л)-накачал второй насос.

Answer 2

1)5+4=9
2)315:9=35
3)35*4=140
4)35*5=175

Answer 3

Problem Analysis

We are given that two pumps pumped a total of 315 liters of water. One pump worked for 5 minutes, while the other pump worked for 4 minutes. Both pumps pumped the same amount of water per minute. We need to determine how much water each pump pumped.

Solution

Let's assume that each pump pumped x liters of water per minute.

The first pump worked for 5 minutes, so it pumped a total of 5x liters of water.

The second pump worked for 4 minutes, so it pumped a total of 4x liters of water.

According to the problem, the total amount of water pumped by both pumps is 315 liters.

Therefore, we can write the equation:

5x + 4x = 315

Simplifying the equation:

9x = 315

Dividing both sides of the equation by 9:

x = 35

So, each pump pumped 35 liters of water per minute.

Therefore, the first pump pumped 5 * 35 = 175 liters of water, and the second pump pumped 4 * 35 = 140 liters of water.

Answer

Each pump pumped the following amounts of water: - The first pump pumped 175 liters of water. - The second pump pumped 140 liters of water.