Question

Вале 10 лет.Она младше своей старшей сестры Оли на 5 лет и старше своего брата Гены в 2 раза.Сколько лет Оле и сколько Гене?

Answer 1

10+5=15 лет(Оля)

10:2=5 лет (Гена)

Answer 2

Оле: 10+5 = 15 лет.

Гене: 10:2 = 5 лет.

Answer 3

Problem Analysis

We are given the following information: - Vale is 10 years old. - Vale is 5 years younger than her older sister Olya. - Vale is twice as old as her brother Gena.

We need to determine the ages of Olya and Gena.

Solution

Let's assign variables to the ages of Olya and Gena: - Let O represent Olya's age. - Let G represent Gena's age.

Based on the given information, we can write the following equations: 1. Vale is 5 years younger than Olya: O - 5 = 10. 2. Vale is twice as old as Gena: G * 2 = 10.

Solving the Equations

Let's solve the equations to find the values of O and G.

From equation 1, we can add 5 to both sides to isolate O: O = 10 + 5 = 15.

From equation 2, we can divide both sides by 2 to isolate G: G = 10 / 2 = 5.

Answer

Therefore, Olya is 15 years old and Gena is 5 years old.