There are 13 letters in "the world topic".
This includes 2 ts and 2 os.
Therefore there are 13!/[2!*2!] = 1556755200 different arrangements.
None
There are 12 two letter arrangements of the letters in PARK.
Assuming you don't repeat letters:* 7 options for the first letter * 6 options for the second letter * 5 options for the third letter * 4 options for the fourth letter (Multiply all of the above together.)
10 x 9 x 8 = 720 different arrangements If the sequence doesn't matter, then there are (720/6) = 120 different bunches
tak-kee plasstic compnany prints a 2-letter code on each of its products. How many different 2-letters codes can be formed using the 26 letters of the alphabet if the two letters must be different?
120.
None
There are 12 two letter arrangements of the letters in PARK.
432
That's eight letters, so: 8! = 40320 different arrangements. n! means "factorial", and the expression expands to n*(n - 1)*(n - 2) ... * 2 * 1
There are (1*5*4)*(3*2*1) = 120 arrangements.
Assuming you don't repeat letters:* 7 options for the first letter * 6 options for the second letter * 5 options for the third letter * 4 options for the fourth letter (Multiply all of the above together.)
720 (6 x 5 x 4 x 3 x 2)
19,275,223,968,000
20! = 2432902008176640000
As with the Roman alphabet, which you may be familiar with it (since you are using it to read this answer), different letters have different symmetries.
Words that can be made with the letters in 'gazebo' are:aageagobagbebegboabogegogabgazegogob