Question

Сырок стоит 5 рублей 40 копеек. Какое наиболее число сырков можно купить на 80 рублей во время распродажи, когда скидка составляет 25%? При расчете цены следует округлить до копейки

Answer 1

100 - 25 = 75 ( % ) = 0,75 ( цены ) после скидки 
5 руб 40 коп = 5,4 ( руб )
5,4 * 0,75 = 4,05 ( руб ) стоимость на распродаже
80 : 4,05 = 19,75 ( сырков)
Ответ 19 сырков 

Answer 2

5.4÷100×75=4.05
80÷4.05=19
Ответ:19 сырков

Answer 3

Calculation of the Maximum Number of Syroks

To calculate the maximum number of syroks that can be purchased for 80 rubles during a sale with a 25% discount, we need to follow these steps:

1. Determine the price of one syrok: 5 rubles and 40 kopeks. 2. Calculate the discount amount: 25% of the original price. 3. Subtract the discount amount from the original price to get the discounted price. 4. Divide the total amount of money available (80 rubles) by the discounted price of one syrok to find the maximum number of syroks that can be purchased.

Let's go through these steps one by one.

Step 1: Determine the price of one syrok The price of one syrok is 5 rubles and 40 kopeks.

Step 2: Calculate the discount amount The discount amount is 25% of the original price. To calculate this, we can use the formula: Discount amount = (Original price * Discount percentage) / 100

In this case, the original price is 5 rubles and 40 kopeks. So, the discount amount can be calculated as: Discount amount = (5 rubles and 40 kopeks * 25) / 100

Step 3: Calculate the discounted price To get the discounted price, we subtract the discount amount from the original price. Let's calculate it: Discounted price = Original price - Discount amount

Step 4: Calculate the maximum number of syroks To find the maximum number of syroks that can be purchased with 80 rubles, we divide the total amount of money by the discounted price of one syrok. Let's calculate it: Maximum number of syroks = 80 rubles / Discounted price

Now, let's calculate the values:

Step 1: The price of one syrok is 5 rubles and 40 kopeks.

Step 2: The discount amount can be calculated as: Discount amount = (5 rubles and 40 kopeks * 25) / 100 = 1 ruble and 35 kopeks.

Step 3: The discounted price can be calculated as: Discounted price = 5 rubles and 40 kopeks - 1 ruble and 35 kopeks = 4 rubles and 5 kopeks.

Step 4: The maximum number of syroks that can be purchased can be calculated as: Maximum number of syroks = 80 rubles / 4 rubles and 5 kopeks.

To calculate the maximum number of syroks, we need to convert the rubles and kopeks into a single unit. Let's convert the kopeks into rubles: 1 ruble = 100 kopeks.

So, 5 kopeks is equal to 0.05 rubles.

Now, let's calculate the maximum number of syroks: Maximum number of syroks = 80 rubles / 4.05 rubles ≈ 19.75 syroks.

Since we cannot purchase a fraction of a syrok, the maximum number of syroks that can be purchased is 19 syroks.

Please note that the calculation is based on the assumption that the price of syroks remains constant during the sale and that the discount is applied to the original price.