Question

У тани было 120 руб., и после уроков она собиралась купить 12 тетрадей. Оказалось, что в магазине произвели уценку некоторых товаров. Тетрадь стала стоить на 20% дешевле. На сколько тетрадей больше смогла купить Таня?

Answer 1

120- 100 процентов. значит 1 процент =1,2.
раз цена изменилась на 20 процентов, то 1,2×20=24. раз тетрадь стоит дешевле, то 120-24=96.
в 1 случаи Таня бы потратила 120×12=1440.
во втором случаи 96×12=1152.
1440-1152=288.
288/96=3.
Ответ:Юля смогла приобрести на 3 тетради больше

Answer 2

Calculating the Number of Notebooks Tanya Can Buy

Tanya initially had 120 rubles and planned to buy 12 notebooks. However, due to a discount of 20% on the notebooks, she could buy more than originally planned. We need to calculate how many additional notebooks she can buy with the same amount of money.

To calculate the number of notebooks Tanya can buy after the discount, we can use the following formula: New price of each notebook = Original price - (Original price * Discount percentage)

Using this formula, we can calculate the new price of each notebook and then determine how many additional notebooks Tanya can buy.

Calculation

The original price of each notebook was not provided, so we'll calculate the new price first using the given discount of 20%.

The new price of each notebook after the discount can be calculated as follows: New price of each notebook = Original price - (Original price * 20%)

Let's calculate the new price of each notebook and then determine how many additional notebooks Tanya can buy.

Solution

The new price of each notebook after the discount is 20% less than the original price. Therefore, the new price of each notebook is: New price of each notebook = Original price - (Original price * 0.20)

Now, we can calculate the new price of each notebook and determine how many additional notebooks Tanya can buy with 120 rubles.

The number of additional notebooks Tanya can buy will be: Additional notebooks = Total money / New price of each notebook

Let's calculate the new price of each notebook and the number of additional notebooks Tanya can buy.

Result

The new price of each notebook after the discount is calculated to be 80% of the original price. Therefore, the new price of each notebook is 80 rubles.

Now, we can calculate the number of additional notebooks Tanya can buy: Additional notebooks = 120 rubles / 80 rubles per notebook = 1.5 notebooks

So, Tanya can buy 1 additional notebook with the same amount of money after the discount.

This means that Tanya can buy a total of 13 notebooks with 120 rubles after the discount.