Question

Тетрадь стоит 25 рублей. Какое наибольшее число таких тетрадей можно будет купить на 450 рублей после понижения цены на 20%?

Answer 1

Ответ:

22 тетради.

Объяснение:

1) 25 - 20% = 20 рублей

или

25*0,2=5

25-5=20 рублей - стоимость 1 тетради после понижения цены.

2) 450:20=22,5  - 22 тетради можно купить.

Answer 2

Calculation of the Maximum Number of Notebooks

To find the maximum number of notebooks that can be purchased for 450 rubles after a 20% price reduction, we need to calculate the price of a single notebook after the reduction and then divide the total budget by the price of a single notebook.

Let's break down the calculation step by step:

1. Calculate the price reduction: - The price reduction is 20%. - To calculate the reduced price, we subtract 20% of the original price from the original price. - The original price is 25 rubles. - 20% of 25 rubles is 5 rubles (25 * 0.20 = 5). - Subtracting 5 rubles from 25 rubles gives us the reduced price: 20 rubles.

2. Calculate the maximum number of notebooks that can be purchased: - The total budget is 450 rubles. - Divide the total budget by the reduced price of a single notebook. - 450 rubles divided by 20 rubles gives us the maximum number of notebooks that can be purchased: 22.5 notebooks.

Since we cannot purchase a fraction of a notebook, the maximum number of notebooks that can be purchased is 22 notebooks.

Please note that the calculation assumes that the price reduction is applied to the original price of the notebook and not to the reduced price after each purchase.