Question

В семье четверо детей. Им 4 7 12 17 лет.Их имена-Егор, Алёша, Лена и Маша.Найдите возраст каждого если одна девочка ходит в детский сад, Лена старше Алёши, а сумма лет Алёши и Лены делится на 3?Помогите пожалуйста)

Answer 1

Маша ходит в детский сад, значит ей 4 года

сумма лет Алёши и Лены делится на 3, значит Лене 17, а Алёше 7

(7+17)/3=8 

Егору 12 лет

Answer 2

Маша-4,Лена-17,Алёша-7,Егор-12

Answer 3

Given Information:

- There are four children in the family. - The ages of the children are 4, 7, 12, and 17 years old. - The names of the children are Egor, Alyosha, Lena, and Masha. - One girl goes to kindergarten. - Lena is older than Alyosha. - The sum of Alyosha's and Lena's ages is divisible by 3.

Solution:

Let's analyze the given information step by step to find the age of each child.

1. One girl goes to kindergarten. - This means that either Lena or Masha goes to kindergarten.

2. Lena is older than Alyosha. - This implies that Lena is not the 4-year-old child because Alyosha is younger than Lena. - Therefore, Masha must be the 4-year-old child who goes to kindergarten.

3. The sum of Alyosha's and Lena's ages is divisible by 3. - Alyosha and Lena are the remaining two children, aged 7 and 12. - The sum of their ages is 7 + 12 = 19, which is not divisible by 3. - Therefore, Alyosha and Lena cannot be the 7-year-old and 12-year-old children.

Based on the given information, we can conclude the following:

- Egor is the 4-year-old child who goes to kindergarten. - Masha is the 7-year-old child. - Alyosha is the 12-year-old child. - Lena is the 17-year-old child.

Therefore, the ages of each child are as follows: - Egor: 4 years old - Masha: 7 years old - Alyosha: 12 years old - Lena: 17 years old

Note: The given information does not specify the gender of each child, except for the fact that one girl goes to kindergarten. So, it is assumed that Egor, Alyosha, and Lena can be either boys or girls.

I hope this helps! Let me know if you have any further questions.