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It is known that Party A and Party B each have less than 100 books, and 40% of the books owned by Party A and 25% of the books owned by Party B are equal. They each donate 10% of their own books to hope project. How many books do they donate? I will take it,
Because it is a book, 10% of a and B are integers, and less than 100, then a and B are integers, because 0.4 A is equal to 0.25 B, then a is equal to 5 / 8 B, then a is 50, B is 80, donated 13 copies
It is known that both Party A and Party B have less than 100 books, and 40% of the books owned by Party A are equal to 25% of the books they already have. They each take out 10% of their own books and donate them to hope primary school. How many books do they donate?
First of all, the answer should be that there are 50 books in a and 80 books in B, and 10% of each is a total of 13 books
Party A and Party B have several books. Party A gives Party B 45 books, and Party A and Party B have the same number of books. Party B gives Party A 45 books, and Party A has twice as many books as Party B. how many books do Party A and Party B have?
Number of books of B: (45 × 2 + 45 × 2) / (2-1) = 180 ／ 1 = 180 (Books) number of original books of B: 180 + 45 = 225 (Books) number of current books of a: 180 × 2 = 360 (Books) number of original books of a: 360-45 = 315 (Books) answer: there are 315 books of a and 225 books of B
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