Question
How many figures (digits) are required to number a book
containing 250 pages?Solution
Alternate Method: Remember that digits used to write 1 to 100 = 192 digits & from 101 to 250, there are 150 numbers & all are of 3 digits hence 450 digits are used. Hence total digits required to write 1 to 250 = 192 + 450 = 642 digits
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