Question

Хоккейные коньки стоили 4500 руб. Сначала цену снизили на 20%, а потом эту сниженную цену повысили на 20%. Сколько стали стоить коньки после повышения цены? Запишите решение и ответ.

Answer 1

4500 - 4500*0,2 = 3600
3600 + 3600*0,2 = 4320
Ответ 4320

Answer 2

Problem Analysis

We are given that a pair of hockey skates initially cost 4500 rubles. The price was first reduced by 20%, and then the reduced price was increased by 20%. We need to determine the final price of the skates after the price increase.

Solution

Let's break down the problem step by step:

1. The initial price of the skates is 4500 rubles. 2. The price is reduced by 20%. To calculate the reduced price, we multiply the initial price by (1 - 0.20) or 0.80. 3. The reduced price is then increased by 20%. To calculate the final price, we multiply the reduced price by (1 + 0.20) or 1.20.

Let's calculate the final price:

1. Initial price: 4500 rubles. 2. Reduced price: 4500 * 0.80 = 3600 rubles. 3. Final price: 3600 * 1.20 = 4320 rubles.

Therefore, after the price increase, the hockey skates cost 4320 rubles.

Answer

The hockey skates cost 4320 rubles after the price increase.