You are not logged in.
Pages:: 1
#1 2015-06-02 09:46:51
Repeated Letter:
Question:
Ten different letters of alphabet are given, words with 5 letters are formed from these given letters. Then, the number of words which have at least one letter repeated is:
Option A):
69760
Option B):
42386
Option C):
99748
Option D):
30240
Correct Answer is Option A):
69760
Explanation:
Number of words which have at least one letter replaced,
= Total number of words - total number of words in which no letter is repeated.
=> 105 16P5.
=> 100000 − 30240 = 69760.
You cannot discover the new oceans unless you have the courage to lose the sight of the shore.
Offline
2015-06-02 09:46:51
- Advertisement
- Ads By Google
Re: Repeated Letter:
\n
Pages:: 1