5. One each with one of the 5 letters left out:
abcd, abce, abde, acde and bcde.
You did not give us the set to work with...
How many three-letter "words" can be made from 10 letters "FGHIJKLMNO" if repetition of letters are not allowed
6 different combinations can be made with 3 items
There are 9C3 = 84 combinations.
If repeats are allowed than an infinite number of combinations is possible.
No is a word. On is a word.
Four combinations: tam ham mat hat Hope it helps (:!
4
6
12
20
Four letter words that can be made from the letters in 'twinkle' are:kilnkiltkiteknewknitlentlienlikelinelinklintnewttiletinetwinweltwentwilewiltwinewink
Four letter words that can be made from the letters in 'Olympics' are:clipclopcloycoilcopylimplispmoiloilyployposysiloslimslipslopsoil
Four letter words that can be made from the letters 'nfwade' are:anewaweddawndeafdeanfadefawnfendwadewandwaneweanwend
Four letter words that can be made from the letters in 'cowlick' are:coilcowlkilolocilocklickwick
Starting with three different letters, six two-letter combinations can be made, if the order of the two letters is important. Only three combinations can be made if the order of the two letters is not important. Example: ABC AB AC BA BC CA CB - six variations But if (for your purposes) BA is the same as AB, Then there are only three: AB AC BC
Four letter words that can be made from the letters in 'syringe' are:greygringyrereinringrisesignsinesingsire