Question

Девочка уплатила за 2 блокнота 40 рублей.Мальчик уплатил за 2 тетради 8 рублей. Во сколько раз тетрадь дешевле блокнота? Помогите пожалуйста!

Answer 1

Ответ:

на 16 рублей

Пошаговое объяснение:

1)40÷2=20(р.)-стоит 1 блокнот 2)8÷2=4(р.)-стоит 1 тетрадка 3)20-4=16(р.)

Answer 2

Calculating the Price Difference Between Notebooks and Exercise Books

To find out how many times cheaper the exercise book is compared to the notebook, we can use the given information about the prices paid by the girl and the boy for the notebooks and exercise books.

Let's denote: - The price of 1 notebook as N - The price of 1 exercise book as E

According to the given information: - The girl paid 40 rubles for 2 notebooks, so the price of 1 notebook (N) is 40 / 2 = 20 rubles. - The boy paid 8 rubles for 2 exercise books, so the price of 1 exercise book (E) is 8 / 2 = 4 rubles.

Now, we can calculate the price difference and the ratio:

Price Difference: - The price of 1 notebook (N) = 20 rubles - The price of 1 exercise book (E) = 4 rubles - The price difference = N - E = 20 - 4 = 16 rubles

Ratio: - To find out how many times cheaper the exercise book is compared to the notebook, we can use the formula: N / E = 20 / 4 = 5.

Therefore, the exercise book is 5 times cheaper than the notebook.

So, the exercise book is 5 times cheaper than the notebook.