Question

После повышения цен на 10% диван стал стоить 7920 руб. Сколько рублей стоит этот диван для повышения цен на сколько увеличилась его цена

Answer 1

1)7920:110=72 2)72•100=7200(р) стоил 3)7920-7200=720(р) увеличелось

Answer 2

Calculating the Original Price and Price Increase

To calculate the original price of the sofa and the increase in its price, we can use the information provided.

Let's denote the original price of the sofa as x and the percentage increase as 10%. After the price increase, the sofa costs 7920 rubles.

We can use the following equation to find the original price (x) and the increase in price: x + 10% of x = 7920

Solving for the Original Price

To solve for the original price, we can use the equation: x + 0.10x = 7920

Combining like terms: 1.10x = 7920

Dividing both sides by 1.10: x = 7200

Calculating the Increase in Price

To find the increase in price, we can subtract the original price from the new price: 7920 - 7200 = 720

Conclusion

The original price of the sofa was 7200 rubles. After a 10% increase, the price of the sofa became 7920 rubles. Therefore, the price increased by 720 rubles.