## ParthKohli Group Title Number of 3-digit palindromes... 9 ways for the hundreds place. 9 ways for the tens place. 1 way for the ones place. $$9 \times 9 \times 1 = 81$$ which is wrong? one year ago one year ago

1. Golferguy158 Group Title

why is there only one way for the ones place?

2. Golferguy158 Group Title

shouldn't there be 9 ways?

3. Spacelimbus Group Title

you can have 9 in the first place, and 10 in the second place. 111 is also a palindrome.

4. ParthKohli Group Title

Because the ones place is always equal to the hundreds place.

5. ParthKohli Group Title

Oh yes!

6. Spacelimbus Group Title

010 is not a 3 digit number, but a 3 digit palindrome.

7. ParthKohli Group Title

@LOOSEr I didn't consider 0 for the tens place, whoopies

8. Spacelimbus Group Title

so I would try it with 90

9. LOOSEr Group Title

9*10*1=90

10. ParthKohli Group Title

Yeah, that's right of course :-P

11. LOOSEr Group Title

10 ways for tens place

12. Spacelimbus Group Title

^^