Question

Тетрадь стоит 20 рублей Какое наибольшее число тетрадей можно купить на 350 рублей после понижения цены на 15%

Answer 1

1)20 - 100%
х      15%
х=20*15/100=3 рубля - понизилась цена
2) 20-3=17 руб - цена пониженная 
3) 350/17=20,58=20, т.к. если будет 21, то денег не хватит. - тетрадей можно купить 
ответ 20 тетрадей

Answer 2

(20/100)*85=17
350:17=20.58
ответ 20 тетр

Answer 3

Calculating the Maximum Number of Notebooks

To calculate the maximum number of notebooks that can be purchased for 350 rubles after a 15% price reduction, we need to follow these steps:

1. Determine the price of a notebook after the 15% reduction. 2. Divide the total budget of 350 rubles by the price of a single notebook to find the maximum number of notebooks that can be purchased.

Let's calculate it step by step:

1. Price after the 15% reduction: - The original price of a notebook is 20 rubles. - To calculate the price after the 15% reduction, we need to subtract 15% of the original price from the original price. - 15% of 20 rubles is 3 rubles (20 * 0.15 = 3). - Subtracting 3 rubles from the original price of 20 rubles gives us the new price after the reduction: 17 rubles.

2. Maximum number of notebooks that can be purchased: - Divide the total budget of 350 rubles by the price of a single notebook (17 rubles) to find the maximum number of notebooks that can be purchased. - 350 rubles / 17 rubles ≈ 20.5882. - Since we cannot purchase a fraction of a notebook, we need to round down to the nearest whole number. - Therefore, the maximum number of notebooks that can be purchased is 20.

In conclusion, the maximum number of notebooks that can be purchased for 350 rubles after a 15% price reduction is 20.