Question

Балл высокийПОМОГИТЕ!!!Марина в первый день прочитала 30% всей книги, во второй-25% всей книги-остальные 360 в 3 день.Сколько прочитала в 2 день?Балл высокий!!!

Answer 1

360*100/45=800(всего)
800*0.25=200 страниц во второй день

Answer 2

Calculation of the Amount Read on the Second Day

To calculate the amount read on the second day, we need to determine the total number of pages in the book. Unfortunately, the search results provided do not contain the necessary information to calculate the answer. However, we can still provide a general approach to solving this type of problem.

Let's assume that the total number of pages in the book is represented by the variable 'P'.

On the first day, Marina read 30% of the book, which is equal to 0.3P pages. On the second day, she read 25% of the book, which is equal to 0.25P pages. On the third day, she read the remaining 360 pages.

To find the value of 'P', we can set up the following equation:

0.3P + 0.25P + 360 = P

Simplifying the equation, we get:

0.55P + 360 = P

Subtracting 0.55P from both sides, we have:

0.45P = 360

Dividing both sides by 0.45, we find:

P = 800

Therefore, the total number of pages in the book is 800.

To find the amount read on the second day, we can substitute the value of 'P' into the equation for the second day:

0.25P = 0.25 * 800 = 200

Therefore, Marina read 200 pages on the second day.

Please note that the above calculation assumes that the percentage values given are based on the total number of pages in the book. If the percentages are based on a different quantity, the calculation would need to be adjusted accordingly.