Guest Posted April 23, 2008 Report Share Posted April 23, 2008 There is a car odometer with 6 digits. 1) at the start, the last four numbers of the odometer are palindromic 2) 1 mile later, the last 5 numbers are palindromic. 3) 1 mile after that, the middle 4 numbers are palindromic. 4) 1 mile after that, all 6 numbers are palindromic. What is the starting number and what is the ending number? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 23, 2008 Report Share Posted April 23, 2008 198888 (last 4) 198889 (last 5) 198890 (middle 4) 198891 (all 6) Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 23, 2008 Report Share Posted April 23, 2008 198888 (last 4) 198889 (last 5) 198890 (middle 4) 198891 (all 6) Yep, it's correct! There is still at least one more possibility, anyone? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 23, 2008 Report Share Posted April 23, 2008 (edited) first reading: 099999 second reading: 100000 thrid reading: 100001 Oops, just reread the OP, so nevermind. Edited April 23, 2008 by Budouka Quote Link to comment Share on other sites More sharing options...
0 akaslickster Posted April 23, 2008 Report Share Posted April 23, 2008 6 and ending==6? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 23, 2008 Report Share Posted April 23, 2008 Yep, it's correct! There is still at least one more possibility, anyone? I got one that works, except it's too good, in that more than the last 4 digits are palindromic to start. 199999 (last 4...actually 5 are palindromic) 200000 (last 5 are) 200001 (middle 4 are) 200002 (all 6 are) Quote Link to comment Share on other sites More sharing options...
0 Guest Posted April 23, 2008 Report Share Posted April 23, 2008 I got one that works, except it's too good, in that more than the last 4 digits are palindromic to start. 199999 (last 4...actually 5 are palindromic) 200000 (last 5 are) 200001 (middle 4 are) 200002 (all 6 are) Lol, rhapsodize, well done! That's exactly what I had in mind... forgot to correct the wording, sorry! Quote Link to comment Share on other sites More sharing options...
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There is a car odometer with 6 digits.
1) at the start, the last four numbers of the odometer are palindromic
2) 1 mile later, the last 5 numbers are palindromic.
3) 1 mile after that, the middle 4 numbers are palindromic.
4) 1 mile after that, all 6 numbers are palindromic.
What is the starting number and what is the ending number?
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