Question

How many 6-letter code words can be formed from the letters T, O, U, DL, Y if no letter is repeated? If letters can be repeated? If adjacent letters must be different? There are possible 6-letter code words if no letter is repeated. (Type a whole number.) There are possible 6-letter code words if letters can be repeated. (Type a whole number) There are possible 6-letter code words if adjacent letters must be different. (Type a whole number.)

Answer 1

3 2 - the 6 5 6 6 6 6 Total Codes rofal ways 6x4 X 6 X 4 X6 X5= 17280 To, U, D, 2, Y 6 letter code - No letter lepeated ways Jill plau Toted codes 6x5 X 4 X3 X2x) 2 720 2) Y setters can be repeated ways the plans 3) If Adjouent letters inuat de different For this nu fill flust 1,3,5th places Ways plaus eo, 68 68 676 x 6 x 6 6 46656 bo T 9 Jill 1,3,5 ( th 1 kt T 4 th ways to ju 2nd 4 4 sh 2nd diff farm 14143ed diff fron 34s 45th ways to fill in place 6 sn plan only different juom 5u plan Els