Question

Дедушка в 7 раз старше Вани а Ваня в 4 раза моложе папы сколько лет ванн и папе если дедушке 63 года

Answer 1

1)63:7=9(л.)-Ваня
2)9*4=36(л.)-папе
Ответ:Вани-9 лет;папе-36 лет.

Answer 2

Дедушка в 7 раз старше Вани, а Ваня в 4 раза моложе папы. Если дедушке 63 года, то сколько лет Ване и папе?

Solution:

Let's assign variables to the ages of the individuals involved: - Let D be the age of the grandfather. - Let V be the age of Vanya. - Let P be the age of the father.

According to the given information: 1. The grandfather is 7 times older than Vanya: D = 7V. 2. Vanya is 4 times younger than the father: V = P/4. 3. The grandfather is 63 years old: D = 63.

To find the ages of Vanya and the father, we can substitute the value of D from equation 1 into equation 3 and solve for V. Then, we can substitute the value of V into equation 2 to find P.

Calculation:

Let's solve the equations to find the ages of Vanya and the father:

1. Substitute the value of D from equation 3 into equation 1: 63 = 7V Solving for V, we get: V = 63/7 = 9.

2. Substitute the value of V into equation 2: 9 = P/4 Solving for P, we get: P = 9 * 4 = 36.

Answer:

Therefore, Vanya is 9 years old and the father is 36 years old.