Question

Отцу 45,а сыну 17 лет. Сколько лет тому назад возраст отца был больше возрастс сына в 3раза.

Answer 1

Отцу было 42, а сыну 14, это было 3 года назад.

Ответ: 3 года назад

Answer 2

Calculating the Age Difference

To calculate the number of years ago the father's age was three times the son's age, we can use the following equation:

Father's current age - x = 3(Son's current age - x)

Where x is the number of years ago when the father's age was three times the son's age.

Solving the Equation

Let's solve the equation step by step:

Father's current age - x = 3(Son's current age - x)

Given: - Father's current age = 45 - Son's current age = 17

Substitute the given values: 45 - x = 3(17 - x)

Now, let's solve for x.

Calculating x

45 - x = 51 - 3x

Add 3x to both sides: 45 + 2x = 51

Subtract 45 from both sides: 2x = 6

Divide by 2: x = 3

So, the father's age was three times the son's age 3 years ago.

Conclusion

Therefore, 3 years ago, the father's age was three times the son's age.