Q.8. How many words, with or without meaning, can be formed using all the letters of
the word EQUATION, using each letter exactly once?
There are 8 different letters in word EQUATION.
Therefore, words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter exactly once
is permutations of 8 different letters taken 8 at a time, which is
Hence, the required number of words formed