Question

ПОМОГИТЕ!!! Сережа говорит Вове «Я тяжелее тебя в три раза». А Вова говорит Серёже: «А я легче тебя на 50 килограммов». Оба говорят правду. Сколько килограммов весит Серёжа? Запишите пожалуйста решение.

Answer 1

Ответ:75 кг

Пошаговое объяснение:

Answer 2

Ответ: 75 кг..

Решение:

Метод подбора.

Мы можем взять, что Вова весит 25 кг..

Как это проверить? 25+50=75 кг. 25*3=75кг.

Всё подходит.

Answer 3

Problem Analysis

We are given that Serzha says, "I am three times heavier than you," and Vova says, "I am 50 kilograms lighter than you." Both statements are true. We need to determine the weight of Serzha.

Solution

Let's assume the weight of Vova is x kilograms. According to Vova's statement, Serzha's weight is x + 50 kilograms.

According to Serzha's statement, his weight is three times Vova's weight, which can be expressed as:

3x = x + 50

To solve this equation, we can subtract x from both sides:

3x - x = x + 50 - x

This simplifies to:

2x = 50

Finally, we can divide both sides by 2 to solve for x:

x = 50 / 2 = 25

Therefore, Vova weighs 25 kilograms.

To find Serzha's weight, we substitute this value back into Serzha's statement:

Serzha's weight = x + 50 = 25 + 50 = 75 kilograms.

So, Serzha weighs 75 kilograms.

Answer

Serzha weighs 75 kilograms.

Note: The solution assumes that the weights mentioned in the problem are in kilograms.