Question

Помогите плиз срочно!В книге 140 страниц. В пятницу Знайка прочитал в 1,2 раза меньше страниц, чем в субботу, и на 20 страниц больше, чем в воскресенье. Сколько страниц прочитал Знайка в субботу?

Answer 1

Хстраниц - Знайка прочитал в пятницу,тогда в субботу он прочитал 1,2х страниц, а в воскресенье (х - 20) страниц. А по условию задачи за три дня он прочитал 140 страниц. Составим и решим уравнение
х + 1,2х + (х - 20) = 140
х + 1,2х + х - 20 = 140
3,2х = 140 + 20 
3,2х = 160
х = 160 : 3,2 = 50 стр. - пятница
1,2х = 1,2 * 50 = 60 стр. - суббота
ответ: в субботу Знайка прочитал 60 страниц. 

Answer 2

Calculation of Pages Read by Znayka

To calculate the number of pages Znayka read on Saturday, we need to analyze the information given in the question.

According to the question, Znayka read 1.2 times fewer pages on Friday than on Saturday. Additionally, Znayka read 20 pages more on Saturday than on Sunday.

Let's assume that Znayka read x pages on Saturday. Based on this assumption, we can calculate the number of pages read on Friday and Sunday.

- On Friday, Znayka read 1.2 times fewer pages than on Saturday, which means he read 1.2x pages. - On Sunday, Znayka read 20 pages less than on Saturday, which means he read (x - 20) pages.

Now, we can set up an equation to solve for x:

1.2x = (x - 20)

Simplifying the equation:

1.2x - x = -20 0.2x = -20 x = -20 / 0.2 x = -100

However, the result is negative, which does not make sense in the context of the question. It is not possible to read a negative number of pages.

Therefore, there seems to be an error or inconsistency in the information provided in the question. Please double-check the given information and provide any additional details if available.

If you have any further questions or need assistance with a different topic, feel free to ask!