Question

Весной на рынке стоимость огурцов каждую неделю снижается на 10% от предыдущей стоимости. В начале недели цена килограмма огурцов была равна 50 руб. Сколько будет стоить килограмм огурцов через 17 дней?

Answer 1

17 дней - это 3-я неделя (7; 14; 14-21(17 день))
снижение будет на 3*10=30 процентов или 0,30
50*0,3=15 руб.- снизится цена
50-15=35 руб.- искомая стоимость огурцов

Answer 2

Calculation of the Price of Cucumbers

To calculate the price of cucumbers after 17 days, we need to consider that the price decreases by 10% every week.

Given that the price of cucumbers at the beginning of the week was 50 rubles per kilogram, we can calculate the price after 17 days as follows:

1. Determine the number of weeks: Since there are 7 days in a week, we divide 17 by 7 to find the number of weeks. The result is approximately 2.4286 weeks.

2. Calculate the price reduction: The price decreases by 10% every week. To find the cumulative reduction over 2.4286 weeks, we multiply 10% by 2.4286. The result is approximately 24.286%.

3. Calculate the final price: To find the final price, we subtract the cumulative reduction from 100% and multiply it by the initial price.

Let's calculate the final price of cucumbers after 17 days:

Step 1: Determine the number of weeks: 17 days ÷ 7 days/week ≈ 2.4286 weeks.

Step 2: Calculate the price reduction: 10% × 2.4286 ≈ 24.286%.

Step 3: Calculate the final price: (100% - 24.286%) × 50 rubles/kg.

The final price of cucumbers after 17 days will be approximately 37.857 rubles per kilogram.

Please note that this calculation assumes a linear decrease in price over time and does not take into account other factors that may affect the actual price of cucumbers in the market.