Question

Answer the following question
How many digits are required to number the pages of a book having
100 pages?​

Answer 1

9 ◆ single digit numbers

90 ◆ two digit numbers.

1 ◆three digit number

so, 1 digit number= 9×1 =9 digits

2 digit number = 90×2=180 digits

3 digit number =1×3=3 digits

so, total digits required = 9+180+3=192

hope it helps

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