Answer:
3493
Step-by-step explanation:
Pages 1 through 9:
There are 9 pages using 1 digit each.
9 * 1 = 9
Pages 10 through 99:
There are 90 pages using 2 digits each:
90 * 2 = 180
Pages 100 through 999:
There are 900 pages using 3 digits each:
900 * 3 = 2700
Pages 1000 through 1150:
There are 151 pages using 4 digits each.
151 * 4 = 604
Total number of digits:
9 + 180 + 2700 + 604 = 3493
Answer: 3493
