Question

sean needs to finish reading his book in four days. he reads 1/3 of the book on the first day, 1/4 of the book on the second day, 1/5 of the book on the third day. if he has still 13 pages to finish on the fourth day, how many pages are there in the book

Answer 1

60 pages

Explanation:

Day 1 : 1/3 book

Day 2: 1/4 book

Day 3: 1/5 book

Day 4: 13 pages

Total days 1 through 3 = 1/3 + 1/4 + 1/5 = 20/60 + 15/60 + 12/60 = 47/60

Day 4 = 1 - 47/60 = 13/60