Question

Товар в магазине стоил 3300 руб. Сначала стоимость снизили на 20 %, а потом повысили на 10 %. Какова конечная стоимость товара?

Answer 1

Стоимость товара после первой скидки составила 80%, значит 3300*0,8= 2640.
Во второй раз после скидки товар стоил уже 110% от новой стоимости, то есть 2640*1,1=2904 руб.

Answer 2

Начальная стоимость: 3300

20% = 1/5 части

3300:5 = 660

3300 - 660 = 2640

Теперь берём 2640 за 100%

10% = 1/10 части

2640:10 = 264

2640 + 264 = 2904

Ответ: 2904.

Answer 3

Calculation of the Final Price

To calculate the final price of the item after the initial 20% discount and subsequent 10% increase, we can follow these steps:

1. Start with the original price of the item, which is 3300 rubles. 2. Apply the 20% discount to the original price. To calculate the discount, we multiply the original price by 0.2 (20% expressed as a decimal) and subtract that amount from the original price. 3. After applying the discount, we have the reduced price. 4. Apply the 10% increase to the reduced price. To calculate the increase, we multiply the reduced price by 0.1 (10% expressed as a decimal) and add that amount to the reduced price. 5. The final result is the price after the increase.

Let's calculate the final price step by step:

1. Original price: 3300 rubles. 2. 20% discount: 3300 * 0.2 = 660 rubles discount. - The reduced price after the discount is 3300 - 660 = 2640 rubles. 3. 10% increase: 2640 * 0.1 = 264 rubles increase. - The final price after the increase is 2640 + 264 = 2904 rubles.

Therefore, the final price of the item after the initial 20% discount and subsequent 10% increase is 2904 rubles.

Please note that the calculation assumes that the discount and increase are applied sequentially, one after the other.