A) 1000
B) 1074
C) 1075
D) 1080
Correct Answer: B
Solution :
Number of digits in 1-digit page numbers \[=1\times 9=9\] Number of digits in 2-digit page numbers \[=2\times 90=180\] Number of digits in 3-digit page numbers \[=3\times 900=2700\] Number of digits in 4-digit page numbers \[=3189-(9+180+2700)=3189-2889=300\] \[\therefore \] Number of pages with 4-digit page numbers \[=\left( \frac{300}{4} \right)=75\] Hence, total number of pages \[=(999+75)=1074\]You need to login to perform this action.
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