A four-digit number can be made by repeating a two-digit number. For example, 1111 is made by repeating 11, and 1919 is made by repeating 19. How many such numbers are there between 2000 and 10\:000?
Answer Choices
A. 80
B. 81
C. 79
D. 72
E. 70
A four-digit number can be made by repeating a two-digit number. For example, 1111 is made by repeating 11, and 1919 is made by repeating 19. How many such numbers are there between 2000 and 10\:000?
Answer Choices
A. 80
B. 81
C. 79
D. 72
E. 70