Question

Магазин делает пенсионерам скидку на определенное количество процентов от стоимости покупки. Батон хлеба стоит в магазине 15 рублей, а пенсионер заплатил за него 13 рублей 80 копеек. Сколько процентов составляет скидка для пенсионера?

Answer 1

$\frac{13.8}{15} = 0.92$
Скидка: 1-0.92 = 0.08 = 8%.

Answer 2

15 руб. - 100%
13,8 руб. - х%
х = 13,8 * 100 : 15 = 92 %
100 - 92 = 8 %
Ответ: 8% составляет скидка для пенсионера

Answer 3

Calculation of the Discount Percentage

To calculate the discount percentage for the pensioner, we need to find the difference between the original price of the bread and the price the pensioner paid, and then calculate what percentage this difference represents in relation to the original price.

The original price of the bread is 15 rubles, and the pensioner paid 13 rubles and 80 kopeks. To find the difference, we subtract the amount paid by the pensioner from the original price:

15 rubles - 13 rubles 80 kopeks = 1 ruble 20 kopeks.

Now, we need to calculate what percentage this difference represents in relation to the original price. To do this, we divide the difference by the original price and multiply by 100:

(1 ruble 20 kopeks / 15 rubles) * 100 = 8%.

Therefore, the discount for the pensioner is 8%.

Please note that the search results did not provide a direct answer to the question. The calculation was done based on the given information and general knowledge of calculating percentages.