Question

За первый год цена книги выросла на 15% ,а за второй год ещё на 20%.На сколько процентов выросла цена книги за два года?

Answer 1

вроде на 35%, но когда цена выросла на 15% , число которым стала цена , стало 100% ,с 25% тоже самое.

Answer 2

15+20=35, это ответ к задаче  35%

Answer 3

Calculating the Increase in Book Price Over Two Years

To calculate the overall increase in the price of the book over two years, we can use the following formula:

Total increase = ((1 + 15%) * (1 + 20%) - 1) * 100%

Let's calculate it step by step:

1. First Year Increase: - The price of the book increased by 15% in the first year.

2. Second Year Increase: - The price of the book increased by an additional 20% in the second year.

3. Total Increase: - Applying the formula: ((1 + 15%) * (1 + 20%) - 1) * 100% = 36.0%

So, the price of the book increased by 36.0% over the two-year period.