Question

Масса зайца на 3 кг больше массыМасса зайца на 3 кг больше массы кролика. Масса двух зайцев такая же, как и 5 кроликов. Какова масса зайца, а какова-кролика?

Answer 1

РЕШАЕМ УРАВНЕНИЕМ 
Х-МАССА КРОЛИКА, ЗНАЧИТ МАССА ЗАЙЦА БУДЕТ (Х+3)
ИТАК 
(Х+3)*2=5Х
2Х+6=5Х
6=3Х
Х=2
ТО ЕСТЬ ВЕС КРОЛИКА 2 КГ, А ВЕС ЗАЙЦА (2+3)     5 КГ. 

Answer 2

Problem Analysis

We are given that the mass of a hare (заяц) is 3 kg more than the mass of a rabbit (кролик). Additionally, the combined mass of two hares is equal to the mass of five rabbits. We need to determine the mass of the hare and the mass of the rabbit.

Solution

Let's assume the mass of the rabbit is x kg. According to the given information, the mass of the hare is 3 kg more than the mass of the rabbit, so the mass of the hare is x + 3 kg.

We are also told that the combined mass of two hares is equal to the mass of five rabbits. Mathematically, this can be expressed as:

2 * (mass of hare) = 5 * (mass of rabbit)

Substituting the values we have:

2 * (x + 3) = 5 * x

Simplifying the equation:

2x + 6 = 5x

Subtracting 2x from both sides:

6 = 3x

Dividing both sides by 3:

x = 2

Therefore, the mass of the rabbit is 2 kg.

To find the mass of the hare, we can substitute this value back into the equation:

Mass of hare = Mass of rabbit + 3 = 2 + 3 = 5 kg.

So, the mass of the hare is 5 kg and the mass of the rabbit is 2 kg.

Answer

The mass of the hare is 5 kg and the mass of the rabbit is 2 kg.