How many 5 digit ( digit = 0 - 9 ) zip codes can exist in which at least one digit is repeated ?	Answers.
A) 39760	B) 49760	C) 59760	D) 69760	E) 70000
Zip codes with 5 digits (all five digits can be repeated): 10^5=100,000   Zip codes with no digit being repeated: 10*9*8*7*6=30,240   Zip codes with at least one digit being repeated: 100,000-30,240=69,760   = 69760   ANS:69760
<result>D</result>
How many 5 digit ( digit = 0 - 9 ) zip codes can exist in which at least one digit is repeated ?