Question
Gwen read 15 of the story book. If she had read another 513 pages, she would have read 78 of the whole story book altogether. How many pages were there in the story book?
4 m

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Gwen read 15 of the story book. If she had read another 513 pages, she would have read 78 of the whole story book altogether. How many pages were there in the story book?