Question

Помогите с решением: В книге 170стр.Максим в первый день прочитал 2/5 книги,а во второй 3/10 книги.Больше или меньше половины книги прочитал Максим за эти два дня?Сколько страниц ему осталось прочитать? ( / дробь) Напишите решение пожалуйста)))

Answer 1

Решение 
1) 170*2/5 = 68 страниц прочитал Максим в первый день 
2) 170*3/10 = 51 страницу прочитал Максим во второй день 
3) 170 -( 68+51) = 51 стр осталось прочитать Максиму 
Второй способ 
1) 1 - ( 2/5 + 3/10) = 3/10 книги осталось прочитать 
2) 170*3/10 = 51 страниц осталось прочитать Максиму

Answer 2

Всего 170 страниц
За первый день почитал 2/5 то есть 170*2/5=34*2=68 страниц прочитал за 1 день.
За второй 3/10 то есть 170*3/10=51 страницу
51+68=119
170-119=51
Ответ: за первые два дня прочитал больше половины осталось прочитать 51 страницу.

Answer 3

Problem Analysis

In the given problem, we are given that Maxim read 2/5 of a book on the first day and 3/10 of the book on the second day. We need to determine if Maxim read more or less than half of the book in these two days, and also find out how many pages he has left to read.

Solution

To solve this problem, we need to calculate the total fraction of the book that Maxim read in these two days and compare it to half of the book. Let's calculate it step by step:

1. Calculate the fraction of the book Maxim read on the first day: - Maxim read 2/5 of the book on the first day.

2. Calculate the fraction of the book Maxim read on the second day: - Maxim read 3/10 of the book on the second day.

3. Calculate the total fraction of the book Maxim read in these two days: - To find the total fraction, we need to add the fractions from the first and second day. - The common denominator for 5 and 10 is 10, so we can rewrite the fractions with a common denominator: - 2/5 = 4/10 - 3/10 (already in the correct form) - Adding the fractions: 4/10 + 3/10 = 7/10.

4. Compare the total fraction to half of the book: - Half of the book is equal to 1/2. - Comparing 7/10 to 1/2, we can see that 7/10 is greater than 1/2.

5. Calculate the number of pages Maxim has left to read: - Since Maxim read more than half of the book, he has less than half of the book left to read. - To find the number of pages left, we need to subtract the pages read from the total number of pages in the book. - Since we are given the page numbers in the problem statement, we can use them to calculate the remaining pages.

Let's calculate the remaining pages using the given information:

- The book has 170 pages. - Maxim read 2/5 of the book on the first day, which is equal to (2/5) * 170 = 68 pages. - Maxim read 3/10 of the book on the second day, which is equal to (3/10) * 170 = 51 pages. - The total number of pages read in these two days is 68 + 51 = 119 pages. - The number of pages left to read is 170 - 119 = 51 pages.

Answer

Based on the calculations, we can conclude that Maxim read more than half of the book in these two days. He has 51 pages left to read.

Please let me know if you need any further assistance!