palidromes are a string of letter that read the same forward as backward, such as string "XCVCX"
2006-09-21 14:00:13 · 2 answers · asked by God's grandson 1 in Education & Reference ➔ Other - Education
26*26*26=17576
17,576 palindromes are possible. You can choose any of the 26 letters for each of the first three in the series (the last two are chosen automatically because they reflect the first two).
2006-09-21 14:02:12 · answer #1 · answered by bunstihl 6 · 0⤊ 0⤋
17,576
26*26*26*1*1= 17,576
Thank you trigonometry!
There are twenty six letters available for each of the first three spots. So you get twenty six cubed. The last tw spots can only have the letter that matches, so only one letter is avilable in both spots. So you don't need to multiply by one twice, since it would be the same, you merely need to multiply twenty six by itself three times!
2006-09-21 21:03:00 · answer #2 · answered by legallyblond2day 5 · 0⤊ 0⤋