Question

Дилер Дима купил у производителя автомобиль «LADA Kalina» и поднял его цену на A%. Спроса не было, и Диме пришлось продать авто на распродаже со скидкой 20%. В результате, его прибыль составила 20%. Найдите A.

Answer 1

Ответ:

А=40%

Пошаговое объяснение:

а-20=20

а=20+20

а=40

Answer 2

Ответ:

50

Пошаговое объяснение:

чел не знаю ,я просто думаю 50 ,доверся моему чутью

Answer 3

Problem Analysis

We are given that a dealer named Dima bought a "LADA Kalina" car from the manufacturer and increased its price by A%. However, there was no demand for the car, so Dima had to sell it at a discount of 20%. As a result, his profit was 20%. We need to find the value of A.

Solution

Let's assume the original price of the car was P.

According to the given information, Dima increased the price of the car by A%. Therefore, the selling price of the car after the increase would be P + (A/100) * P.

Since there was no demand for the car, Dima had to sell it at a discount of 20%. Therefore, the selling price after the discount would be (P + (A/100) * P) - 0.2 * (P + (A/100) * P).

We are also given that the profit made by Dima was 20%. Therefore, the profit can be calculated as the difference between the selling price and the original price: (P + (A/100) * P) - P.

Now, we can set up an equation using the given information and solve for A.

Calculation

Let's calculate the value of A using the equation we derived above.

Profit = Selling Price - Original Price

20% = ((P + (A/100) * P) - 0.2 * (P + (A/100) * P)) - P

20% = (P + (A/100) * P - 0.2 * P - 0.2 * (A/100) * P) - P

20% = (P(1 + A/100) - 0.2P(1 + A/100)) - P

20% = (P(1 + A/100 - 0.2 - 0.2A/100)) - P

20% = (P(0.8 + 0.8A/100)) - P

20% = (0.8P + 0.8A/100 * P) - P

20% = 0.8A/100 * P

0.2 = 0