Download Aptitude Crack
img not found img not found

Permutation and Combination

Q1:

How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?

A 40

B 400

C 5040

D 2520

ANS:C - 5040

'LOGARITHMS' contains 10 different letters.

Required number of words = Number of arrangements of 10 letters, taking 4 at a time.
  = 10P4
  = (10 x 9 x 8 x 7)
  = 5040.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.