Question

в трёх пакетах лежит крупа :гречка, пшено и рис. Всего 6 кг. Пшено составляет 30% от всей крупы, гречки в 2 раза больше чем пшена. Сколько кг каждой крупы лежит в пакетах?​

Answer 1

Ответ:

1,8 пшена 3,6 гречки 0,6 риса

Объяснение:

1)6:100=0,06(кг) в 1 %

2)0,06*30%=1,8 (кг) пшена

3)1,8*2=3,6(кг) гречки

4)1,8+3,6=5,4(кг) пшена и гречки вместе

5)6-5,4=0,6(кг) риса

Answer 2

Відповідь: пшено 1,8кг, гречка 3,6кг, рис 0,6кг

Пояснення:6кг - 100%

×кг - 30%

1)6×0,3 = 1,8кг - пшена так как 30% от всего

2)1,8×2 = 3,6 - гречки так как в 2 раза больше или 60% от всего

3) 6-(1,8+3,6)= 0,6кг - рис, так как остаток или 10% от всего

Answer 3

Problem Analysis

We are given three types of grains: buckwheat, millet, and rice. The total weight of the grains is 6 kg. It is mentioned that millet constitutes 30% of the total weight, and buckwheat is twice as much as millet. We need to determine the weight of each type of grain.

Solution

Let's assume the weight of millet is x kg. According to the given information, buckwheat is twice as much as millet, so the weight of buckwheat is 2x kg. The total weight of the grains is 6 kg, so we can write the equation:

x + 2x + rice = 6

Simplifying the equation, we have:

3x + rice = 6

It is also mentioned that millet constitutes 30% of the total weight. Since the total weight is 6 kg, the weight of millet can be calculated as:

0.3 * 6 = 1.8 kg

Now we can substitute the weight of millet into the equation:

3x + rice = 6

3x + 1.8 + rice = 6

Subtracting 1.8 from both sides of the equation, we get:

3x + rice = 4.2

Now we have two equations:

3x + rice = 4.2 x + 2x + rice = 6

We can solve these equations simultaneously to find the weight of each type of grain.

Solving the Equations

Subtracting the second equation from the first equation, we get:

(3x + rice) - (x + 2x + rice) = 4.2 - 6

Simplifying the equation, we have:

3x + rice - 3x - rice = -1.8

The x and rice terms cancel out, leaving us with:

0 = -1.8

This equation is not possible, as it implies that -1.8 is equal to 0. Therefore, there is no solution to the given problem.

Conclusion

Based on the given information, it is not possible to determine the weight of each type of grain in the packets. The problem seems to have contradictory information or missing details.