Question

Алеша и Боря вместе весят 82кг ,Алеша и Вова весят 83кг ,Боря и Вова весят 85кг.Сколько весят Алеша ,Боря и Вова?

Answer 1

82+83+85=трое мальчиков*2=250
250/2=125 (кг)

Answer 2

Calculation of Weights

To determine the weights of Alesha, Borya, and Vova, we can use the given information:

- Alesha and Borya together weigh 82 kg. - Alesha and Vova together weigh 83 kg. - Borya and Vova together weigh 85 kg.

Let's assign variables to the weights of Alesha, Borya, and Vova. We'll use the following variables:

- Alesha's weight: A - Borya's weight: B - Vova's weight: V

From the given information, we can create the following equations:

1. A + B = 82 (Alesha and Borya together weigh 82 kg) 2. A + V = 83 (Alesha and Vova together weigh 83 kg) 3. B + V = 85 (Borya and Vova together weigh 85 kg)

To solve these equations, we can use substitution or elimination methods. Let's use the elimination method:

Adding equations 1 and 3, we get:

(A + B) + (B + V) = 82 + 85 A + B + B + V = 167 A + 2B + V = 167 ----(4)

Subtracting equation 2 from equation 4, we get:

(A + 2B + V) - (A + V) = 167 - 83 2B = 84 B = 42

Now, we can substitute the value of B into equation 1 to find A:

A + 42 = 82 A = 82 - 42 A = 40

Finally, we can substitute the values of A and B into equation 3 to find V:

42 + V = 85 V = 85 - 42 V = 43

Therefore, the weights of Alesha, Borya, and Vova are:

- Alesha (A): 40 kg - Borya (B): 42 kg - Vova (V): 43 kg

Please note that these calculations are based on the given information and the assumption that each person's weight is a whole number.