Question

стоимость товара 90 гр.сначала ее снизили до 20 % а затем повысили на 10%.какова стоимость товара и на сколько изменилась первоначальная цена?

Answer 1

(90/100)*20=18гр
90-18=72гр-цена после снижения на 20 процентов

(72/100)*10=7,2гр-цена после увеличения на 10 процентов
72+7,2=79,2гр- конечная стоимость

90-79,2=10,8гр - на столько изменилась цена

Answer 2

Calculation of the Final Price and Change in the Initial Price

To calculate the final price of the product and determine the change in the initial price, we need to follow these steps:

1. Start with the initial price of the product, which is 90 гр. 2. Apply a discount of 20% to the initial price. This means the price is reduced by 20%. 3. Calculate the discounted price by subtracting 20% of the initial price from the initial price: 90 гр - (20% of 90 гр). 4. After calculating the discounted price, apply a markup of 10% to the discounted price. This means the price is increased by 10%. 5. Calculate the final price by adding 10% of the discounted price to the discounted price: discounted price + (10% of discounted price).

Let's calculate the final price and the change in the initial price step by step.

Step 1: Initial Price The initial price of the product is 90 гр.

Step 2: Discount A discount of 20% is applied to the initial price. Discounted price = 90 гр - (20% of 90 гр)

Step 3: Markup A markup of 10% is applied to the discounted price. Final price = Discounted price + (10% of discounted price)

Now, let's calculate the values.

Step 2: Discount Discounted price = 90 гр - (20% of 90 гр) Discounted price = 90 гр - (0.2 * 90 гр) Discounted price = 90 гр - 18 гр Discounted price = 72 гр

Step 3: Markup Final price = Discounted price + (10% of discounted price) Final price = 72 гр + (0.1 * 72 гр) Final price = 72 гр + 7.2 гр Final price = 79.2 гр

Therefore, the final price of the product is 79.2 гр, and the initial price has changed by -10.8 гр (90 гр - 79.2 гр).

Please note that the calculations are based on the given information and assumptions.