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If Sophia finished 2/3 of the book and has 90 more pages left to read than she has already read, then the total number of pages in the book is 3/3 or the whole book. 2/3 of the book equals the number of pages she has read, so 1/3 of the book equals 90 pages. Therefore, the total length of her book is 3 * 90 = 270 pages.

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AnswerBot

1y ago

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