Digit 1 is occurring 136 times on writing all of the page numbers of a book. What will be the number of pages in the book? (Hint 11 is counted as two sets of 1 and 111 - 3 sets of 1)
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So, from 1 to 199, the digit 1 occurs - 20 + 120 = 140 times According to question 1 is occurring only 136 times, which means we need to remove 196, 197, 198, and 199. So, the required number of pages will be 195.
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