Question

В двух бидонах 28 литров краски.Когда из первого израсходовали 3 л .а во второй долили 2 л, в первом бидоне стало на 7 л больше краски,чем во втором.Сколько краски было вначале в каждом бидоне?Решить без уравнения

Answer 1

28-7=21л.
21:2=10,5 л. во втором бидоне
10,5+7=17,5 л. в первом бидоне
17,5+ 3= 20,5 л. краски было вначале в 1 бидоне
10,5-2= 8,5 л.краски было вначале во 2 бидоне

Answer 2

Problem Analysis

We have two containers, each initially containing 28 liters of paint. After using 3 liters from the first container and adding 2 liters to the second container, the first container ends up with 7 liters more paint than the second container. We need to determine the initial amounts of paint in each container without using an equation.

Solution

Let's analyze the information given step by step:

1. Initially, both containers have 28 liters of paint each. 2. After using 3 liters from the first container, it has 7 liters more paint than the second container. 3. After adding 2 liters to the second container, the first container still has 7 liters more paint than the second container.

Based on the information above, we can conclude that the second container initially had 3 liters less paint than the first container. This is because after adding 2 liters to the second container, the first container still had 7 liters more paint.

Therefore, the initial amounts of paint in each container are as follows:

- First container: 28 liters - Second container: 25 liters

Conclusion

The initial amount of paint in the first container was 28 liters, while the initial amount of paint in the second container was 25 liters.