Question

Купили 15 штук тетрадей и 10 штук ручек, заплатив за всю покупку 8080 рублей. Сколько стоит одна ручка, если одна тетрадь стоит 326 рублей.​

Answer 1

Ответ:

319 руб.

пошаговое решение:

326*15=4890

8080-4890=3190

3190:10=319 (руб) стоит 1 ручка

Answer 2

Calculating the Cost of One Pen

To calculate the cost of one pen, we can use the information provided about the total cost of the purchase and the cost of one notebook.

Let's denote: - Cost of one notebook = 326 rubles - Number of notebooks bought = 15 - Number of pens bought = 10 - Total cost of the purchase = 8080 rubles

First, we calculate the total cost of the notebooks: - Total cost of notebooks = Cost of one notebook * Number of notebooks bought - Total cost of notebooks = 326 * 15 = 4890 rubles

Next, we calculate the total cost of the pens: - Total cost of pens = Total cost of the purchase - Total cost of notebooks - Total cost of pens = 8080 - 4890 = 3190 rubles

Now, we can find the cost of one pen: - Cost of one pen = Total cost of pens / Number of pens bought - Cost of one pen = 3190 / 10 = 319 rubles

Therefore, the cost of one pen is 319 rubles.

Conclusion

Based on the given information, the cost of one pen is 319 rubles.