The pages of a book are numbered 1, 2, 3, … In total, it takes 852 digits to number all the pages of the book. What is the number of the last page?
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Answer:
Number of the last page is 320
Step-by-step explanation:
Number of pages
1 to 9 = 9
11 to 99 = 20 * 9 = 180
100 to 199 = 30 * 10 = 300
200 to 299 = 30 * 10 = 300
300 to 319 = 60
320 = 3
Total pages = 9 + 180 + 300 + 300 + 60 + 3 = 852
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