| The number of digits are required to number a book containing 200 pages? |
A) 200
B) 600
C) 492
D) 372
Correct Answer: C
Solution :
| Number of one digit pages from 1 to 9 = 9 |
| Number of two digit pages from 10 to 99 = 90 |
| Number of three digit page from 100 to 200 = 101 |
| \[\therefore \]Total number of required page |
| \[=9\times 1+90\times 2+101\times 3=492\] |
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