Question

How many four-letter words with or without meaning con be formed using the letters of the word "flash"?​

Answer 1

Answer:

3

Step-by-step explanation:

fash, half, lash.

there is a total or three

Answer 2

Answer:

120 four-letter words  can be formed .

Step-by-step explanation:

• The number of four-letter words can be found by the permutation of forming 4 letters words with the letters of the given words and then  by calculating the permutation of selecting 4 letters from n letters , where n is the number of letters in the given word. It can be obtained by the formula, nPr=n!/(n−r)!

• The given  word ‘flash’.

• There are 5 letters in the given word ‘flash’.

              ⇒n=5

•  We have to take all the possible ways of arrangements as the words can be with or without meaning,

• nPr=n!/(n−r)! where n is the number of objects and r is the number of objects needed to be selected, will be used to find the result.

• So, the number of four-letter words that can be formed using the letters of the word "flash", is given by,

         ⇒5P4=5!/(5−4)!

•  ⇒5P4=5!/1!

•  ⇒5P4=5×4×3×2×1!/1!

       ⇒5P4=5×4×3×2

• So, 5P4=120

• The number of four-letter words that can be formed using the letters of the word "flash", is 120.