Q8 of 42 Page 148

How many words, with or without meaning, can be formed using all the letters of the word EQUATION, using each letter exactly once?


Total number of different letters in EQUATION = 8

Number of letters to be used to form a word =8


⇒ No. of permutations =


More from this chapter

All 42 →
6

Find n if n-1P3 : nP3 = 1 : 9.

 7

Find r if (i)5Pr : 26Pr-1 (ii) 5Pr : 6Pr-1

 9

How many words, with or without meaning can be made from the letters of the word MONDAY, assuming that no letter is repeated, if.

(i) 4 letters are used at a time, (ii) all letters are used at a time,


(iii) all letters are used but first letter is a vowel?

 10

In how many of the distinct permutations of the letters in MISSISSIPPI do the four I’s not come together?