Question

В магазине электроники была акция и в первый месяц цену телевизора снизили на 10%, но через два месяца цену повысили на 10%. Последняя цена товара? Изменилась? Если да, то на сколько процентов?

Answer 1

Ответ:

Да, цена изменилась на 1% цена стала меньше.

Пошаговое объяснение:

Предположим, что изначальная цена - 100р. тогда умножаем на 10% и полученное вычитаем из 100. Получаем что цена стала 90. Теперь умножаем 90 на 10% и полученное число прибавляем к 90 получаем 99. Значит цена изменилась на 1% ниже.

Answer 2

Calculation of the Final Price

To calculate the final price of the television after the discount and subsequent increase, we can follow these steps:

1. Start with the original price of the television. 2. Apply a 10% discount to the original price to calculate the reduced price. 3. Apply a 10% increase to the reduced price to calculate the final price.

Let's assume the original price of the television is $100.

Calculation Steps

1. Original price: $100 2. Reduced price after a 10% discount: $100 - (10% of $100) = $100 - $10 = $90 3. Final price after a 10% increase: $90 + (10% of $90) = $90 + $9 = $99

Therefore, the final price of the television after the discount and subsequent increase is $99.

Change in Price

The price of the television has changed from the original price of $100 to the final price of $99. To calculate the percentage change, we can use the following formula:

Percentage Change = ((Final Price - Original Price) / Original Price) * 100

Using this formula, we can calculate the percentage change in price:

Percentage Change = (($99 - $100) / $100) * 100 = (-$1 / $100) * 100 = -1%

Therefore, the price of the television has decreased by 1% after the discount and subsequent increase.

Please note that the calculations above are based on the assumption that the original price of the television is $100. If the actual original price is different, the final price and percentage change will vary accordingly.