if a boy reads 3/5 pages of a book in one day and 4/5 pages in another day. There are 30 pages unread, how many pages does the bo

if a boy reads 3/5 pages of a book in one day and 4/5 pages in another day. There are 30 pages unread, how many pages does the book contain???​

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  1. Answer:

    75 pages.

    Step-by-step explanation:

    Let the total number of pages in the book be x.

    According to the question,

    (3/5 of x) + (4/5 of x) – (30) = x

    3x/5 + 4x/5 – 30 = x

    (3x + 4x) / 5 = x + 30

    7x = 5 (x + 30)

    7x = 5x + 150

    7x – 5x = 150

    2x = 150

    x = 150/2

    x = 75 pages

    Hope it helps u !!!!!!

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