Question
Mary read a book from Friday to Sunday. Every day, she read 5 more pages than the day before. She read 84 pages on Sunday. How many pages of the book did Mary read from Friday to Sunday altogether?
2 m

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Mary read a book from Friday to Sunday. Every day, she read 5 more pages than the day before. She read 84 pages on Sunday. How many pages of the book did Mary read from Friday to Sunday altogether?