Question

Лена спросила Фёдора : сколько тебе лет? Федор ответил: если число моих лет увеличить в 4 раза, а потом уменьшить на 12, то получится 28 лет. Сколько лет Федору ?

Answer 1

Пусть Федору х лет, тогда
Х*4-12=28
4х=40
х=10(лет)

Answer 2

Обратное действие тоесть: 28+12/4=10 лет мальчику

Answer 3

Calculation of Fedor's Age

To determine Fedor's age, we can follow the information provided in the question. Fedor mentioned that if his age is multiplied by 4 and then decreased by 12, the result is 28 years. Let's solve this equation to find Fedor's age.

Let's assume Fedor's age is represented by the variable "x". According to the given information, we have the equation:

4x - 12 = 28

To find the value of "x", we can solve this equation:

4x = 28 + 12 4x = 40 x = 40 / 4 x = 10

Therefore, Fedor is 10 years old.

Summary

Fedor is 10 years old based on the information provided in the question.