andrews book collection contains 60 books.he donates 15% of his books yo the national library,sells 1/4 of his books to a book d

Question

3 years ago

11

ealer,and sells 7 books on amazon. how many books remain on andrews book collection

1 answer:

Vitek1552 [10] · Answer 1 · 2022-01-11T23:25:19+03:00

Answer:

Books remaining in Andrews book collection = 29 books

Explanation:

Andrews book collection contains 60 books.

He donates 15% of his books to the national library,

Number of books to library = 60 x 15/100 = 9

Sells 1/4 of his books to a book dealer,

Book sold to book dealer = 60 x 1/4 = 15

Sells 7 books on amazon.

Books remaining = 60 - (9 + 15 + 7)

= 60 - 31

= 29

Books remaining in Andrews book collection = 29 books