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Praveen Singh • 36.71K Points
Coach Math 

Q. 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?

  • (A) 194
  • (B) 195
  • (C) 200
  • (D) 295
Correct Answer - Option(B)
Explanation by: Praveen Singh 
From 1 - 99, the digit 1 occurs 20 times, and from 100 - 199, the digit 1 occurs 120 times.

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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