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What is the total number of digits required in numbering the pages of a book, which has 1,724 pages?

1 Answer

2 votes

Answer:

5789

Explanation:

n-m = m-n+1

1-9 = 9 digits

10-99 = 180 digits

100-999 = 2700 digits

1000-1724 = 2900 digits

Add them all together and get 5789.

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