Question

Книга стоила 240 рублей. Найдите стоимость книги после ее подорожания на 15%

Answer 1

240*15/100=36(подорожала)
240+36=276

Answer 2

240*15:100=36 (руб)
240+36=276 (руб)

Answer 3

Calculation of the Book's Price After a 15% Increase

To find the cost of the book after a 15% increase, we can use the following formula:

New Price = Old Price + (Old Price * Percentage Increase)

Given that the original price of the book was 240 rubles and the increase is 15%, we can substitute these values into the formula:

New Price = 240 + (240 * 0.15)

Calculating this expression, we find:

New Price = 240 + 36

Therefore, the cost of the book after the 15% increase is 276 rubles.