Aptitude - Permutation and Combination - Discussion
Discussion Forum : Permutation and Combination - General Questions (Q.No. 12)
12.
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?
Answer: Option
Explanation:
'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. |
Discussion:
68 comments Page 7 of 7.
Bmnt said:
8 years ago
What is the answer if repetition is allowed?
Chandu said:
10 years ago
What is the answer if repetition is allowed?
Shree said:
7 years ago
Thanks for explaining the solution.
Shashwat said:
1 decade ago
Why permutation is used explain?
Abdulrehman said:
6 years ago
Thanks to all for explaining.
ARVIND said:
7 years ago
How 4 comes? Please explain.
Sreeparna said:
10 years ago
Why permutation here?
Shareef said:
10 years ago
Why 4 is taken?
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