Question

Помогите решить задачу. Бабушке с Олей вместе 63 года , бабушке с Машей вместе 65 лет , всего им вместе 73 года . Сколько лет каждой и них ?

Answer 1

1) 73-63=10
2)73-65=8
3) 73-10+8=55
Маше 10 лет , Оле - 8, а бабушке - 55 .

Answer 2

1.73-65=8(лет Оле)2.65-63=2(Маша старше,чем Оля)3.8+2=10(лет Маше)4.10+8=18(Маше и Оле вместе).5.73-18=55(лет бабушке).Ответ.Бабушке-55 лет,Оле-8 лет,Маше-10 лет.

Answer 3

Problem Analysis

We are given that the grandmother has been together with Olya for 63 years and with Masha for 65 years. The total time they have been together is 73 years. We need to find out how old each of them is.

Solution

Let's assume the age of the grandmother is G, the age of Olya is O, and the age of Masha is M.

From the given information, we can write two equations: 1. G + O = 63 (equation 1) 2. G + M = 65 (equation 2)

We also know that the total time they have been together is 73 years: G + O + M = 73 (equation 3)

To solve these equations, we can subtract equation 1 from equation 3 to eliminate G: (G + O + M) - (G + O) = 73 - 63 M = 10

Substituting the value of M in equation 2, we can find the age of the grandmother: G + 10 = 65 G = 55

Finally, substituting the values of G and M in equation 1, we can find the age of Olya: 55 + O = 63 O = 8

Therefore, the grandmother is 55 years old, Olya is 8 years old, and Masha is 10 years old.

Answer: The grandmother is 55 years old, Olya is 8 years old, and Masha is 10 years old.