Question

В семье четверо детей- Ерлан, Лаура, Арман и Меруерт.Одному из них четыре года,другому-8 лет,третьему-десять лет,четвёртому- 15 лет.Одна из девочек ходит в детский сад. Лаура старше Армана,и сумма их возрастов делится на три.найди возраст каждого из детей.

Answer 1

Девочка Меруерт 4 года ( ходит в детский сад) Арман 8 лет Лаура 10 лет Ерлан 15 лет

Answer 2

Меруэрту-15; Лауре- 10; Арману- 8 и Ерлан -4года.

Answer 3

Problem Analysis

We are given a family with four children named Erlan, Laura, Arman, and Meruert. We know the ages of the children: one is 4 years old, another is 8 years old, the third is 10 years old, and the fourth is 15 years old. We also know that one of the girls goes to kindergarten, and Laura is older than Arman. The sum of their ages is divisible by three. We need to find the age of each child.

Solution

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

1. We know that one of the children is 4 years old. Let's assign this age to one of the children. We'll call this child Child A.

2. We also know that another child is 8 years old. Since Laura is older than Arman, and the child who goes to kindergarten is a girl, we can conclude that Laura is the child who is 8 years old. We'll call this child Child B.

3. The sum of their ages is divisible by three. Let's calculate the sum of the ages of Child A and Child B. The sum is 4 + 8 = 12.

4. Now, let's find the age of Child A. We know that the sum of their ages is divisible by three. So, the age of Child A must be a multiple of three. The only multiple of three less than 12 is 9. Therefore, Child A is 9 years old.

5. We have found the ages of two children: Child A is 9 years old and Child B (Laura) is 8 years old.

6. We are left with two children: Arman and Meruert. We know that the third child is 10 years old. Since Laura is older than Arman, and Arman is not 10 years old, we can conclude that Meruert is the child who is 10 years old. We'll call this child Child C.

7. We have found the ages of three children: Child A is 9 years old, Child B (Laura) is 8 years old, and Child C (Meruert) is 10 years old.

8. The remaining child is Arman. We know that the fourth child is 15 years old. Therefore, Arman is 15 years old. We'll call this child Child D.

9. We have found the ages of all four children: Child A is 9 years old, Child B (Laura) is 8 years old, Child C (Meruert) is 10 years old, and Child D (Arman) is 15 years old.

Answer

Based on the given information, the ages of the children are as follows: - Erlan: 9 years old - Laura: 8 years old - Arman: 15 years old - Meruert: 10 years old