A) 90000
B) 100000
C) 30240
D) 69760
Correct Answer: D
Solution :
Number of numbers with repetition \[=10\times 10\times 10\times 10\times 10=100000\] Number of numbers without repetition \[=10\times 9\times 8\times 7\times 6=30240\] \[\therefore \]Number of numbers with at least one digit repeated \[=100000-30240\] \[=69760\]You need to login to perform this action.
You will be redirected in
3 sec