Question

На заводе за год изготовили 300 тракторов. за первые пол года изготовили 5/12 всех тракторов, следующие три месяца- 2/5 остатка, а на протяжении последних трёх месяцев изготовили одинаковое количество тракторов ежемесячно. сколько тракторов было изготовлено на заводе в декабре?

Answer 1

300×5/12=1500/12=125 за 6 мес
300-125=175 остаток
175×2/5=350/5=70 за 3 мес
175-70=105 осталься
так как последний 3 мес одинаково кол во тракторов
105÷3=35 трактор в месяц
ответ: в декабре 35 тракторов изготоалено

Answer 2

Calculating the Number of Tractors Produced in December

To calculate the number of tractors produced in December, we can break down the production process based on the information provided.

1. Total Tractors Produced in a Year: - The total number of tractors produced in a year is 300.

2. Production in the First Half of the Year: - In the first half of the year, 5/12 of all tractors were produced.

3. Production in the Next Three Months: - In the next three months, 2/5 of the remaining tractors were produced.

4. Production in the Last Three Months: - In the last three months, an equal number of tractors were produced each month.

Let's calculate the number of tractors produced in December based on this information.

Calculations

1. Total Tractors Produced in the First Half of the Year: - 5/12 * 300 = 125 tractors.

2. Remaining Tractors after the First Half of the Year: - Total tractors - Tractors produced in the first half = 300 - 125 = 175 tractors.

3. Tractors Produced in the Next Three Months: - 2/5 * 175 = 70 tractors.

4. Remaining Tractors after the Next Three Months: - 175 - 70 = 105 tractors.

5. Tractors Produced in the Last Three Months: - Let's assume the equal number of tractors produced in the last three months is x.

6. Equation for the Last Three Months: - x + x + x = 105 - 3x = 105 - x = 105 / 3 - x = 35

Conclusion

Based on the given information, the number of tractors produced in December is 35 tractors.