A boy reads 30 pages of a book the first day, 1/8 of the book the second day and a 1/4 of the book the next day, how many pages is the book

Question

A boy reads 30 pages of a book the first day, 1/8 of the book the second day and a 1/4 of the book the next day, how many pages is the book

Answer 1

Assume total page is T, then we have an equation:30+1/8*T+1/4*T=T

T=48

Answer 2

On the second and third day he read 3 / 8 (1 / 8 + 1 / 4)

That means 30 pages was 5 / 8 of the book

30 ÷ (5 / 8) = ?