ParthKohli
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?
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Golferguy158
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why is there only one way for the ones place?
Golferguy158
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shouldn't there be 9 ways?
Spacelimbus
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you can have 9 in the first place, and 10 in the second place.
111 is also a palindrome.
ParthKohli
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Because the ones place is always equal to the hundreds place.
ParthKohli
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Oh yes!
Spacelimbus
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010 is not a 3 digit number, but a 3 digit palindrome.
ParthKohli
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@LOOSEr I didn't consider 0 for the tens place, whoopies
Spacelimbus
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so I would try it with 90
LOOSEr
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9*10*1=90
ParthKohli
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Yeah, that's right of course :-P
LOOSEr
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10 ways for tens place
Spacelimbus
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^^