# How many integers between 1000 and 1999 have three same digits? A. 34 B. 42 C. 72 D. 12

##### 1 Answer

Jun 23, 2018

See a solution process below:

#### Explanation:

First, there are ? solutions of repeating the integers from 2 through 8:

1: **1222**

2: **1333**

3: **1444**

4: **1555**

5: **1666**

6: **1777**

7: **1888**

Then we can use different combinations of

8: **1110**

9: **1101**

10: **1011**

Finally, if we include the end points:

11: **1000** has three 0's

12: **1999** has three 9's

The answer is: **D. 12**