Question

У сережи в коллекции в 3 раза меньше марок чем у васи а у андрея в 2 раза больше чем у васи сколько марок у каждого если у андрея на 80 марок больше чем у серёжи

Answer 1

Х - марок у Васи
х/3 - марок у Сережи
2х - марок у Андрея
2х - x/3 =80
6x - x = 240
5x = 240
x = 48
У Васи 48 марок.
У Сережи 48/3 = 16 марок.
У Андрея 48 * 2 = 96 марок.

Answer 2

Problem Analysis

We are given the following information: - Sergey has 3 times fewer stamps than Vasya. - Andrei has 2 times more stamps than Vasya. - Andrei has 80 more stamps than Sergey.

We need to find the number of stamps each person has.

Solution

Let's assume that Vasya has x stamps.

According to the given information: - Sergey has 3 times fewer stamps than Vasya, so Sergey has x/3 stamps. - Andrei has 2 times more stamps than Vasya, so Andrei has 2x stamps. - Andrei has 80 more stamps than Sergey, so 2x = x/3 + 80.

Now we can solve this equation to find the value of x and then calculate the number of stamps for each person.

Calculation

Let's solve the equation 2x = x/3 + 80 to find the value of x.

2x = x/3 + 80
Multiply both sides by 3 to eliminate the fraction:
6x = x + 240
Subtract x from both sides:
5x = 240
Divide both sides by 5:
x = 48

So, Vasya has 48 stamps.

Now we can calculate the number of stamps for Sergey and Andrei:

- Sergey: x/3 = 48/3 = 16 stamps. - Andrei: 2x = 2 * 48 = 96 stamps.

Answer

Therefore, Vasya has 48 stamps, Sergey has 16 stamps, and Andrei has 96 stamps.