Question

Ваня в 5 раз старше Тани, Таня на 20 лет младше Вани. Аня младше Вани на 10 лет. Сколько лет Ане?

Answer 1

Тане х лет,Ване 5х лет.

5х-х=20
4х=20
х=5
Тане 5 лет, Ване  25 лет
25-10 = 15 лет Ане
О т в е т. 15 лет

Answer 2

Пусть тане х лет тогда ване будет 5х
получаем 5х-х=20
                   4х=20
                    х=5 тане получается 5 лет а ване 25
                      25-10=15 лет ане 

Answer 3

Solution:

Let's solve this step by step.

1. Let's represent Vanya's age as V and Tanya's age as T. 2. According to the given information: - Vanya is 5 times older than Tanya: V = 5T - Tanya is 20 years younger than Vanya: T = V - 20 - Anya is 10 years younger than Vanya: A = V - 10

Now, we can solve for the ages.

Solving for Tanya's Age:

Using the equation V = 5T, we can substitute V with 5T in the equation T = V - 20: - T = 5T - 20 - 20 = 4T - T = 5

Solving for Vanya's Age:

Using the value of T from the previous step, we can find V: - V = 5T - V = 5 * 5 - V = 25

Solving for Anya's Age:

Using the value of V, we can find A: - A = V - 10 - A = 25 - 10 - A = 15

So, Anya is 15 years old.

Final Answer:

Anya is 15 years old.