Subject
Quantitative Aptitude
Topic
Permutation & Combination
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?
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?
ক)
40খ)
400গ)
5040ঘ)
2520Explanation
'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.Related questions
At a party, everyone shook hands with everyone else, If there were 66 handshakes, how many people were at the party?At a party, everyone must shake the hand of the other. If the total number of handshakes Is 66, there are ____ people at the party.There are 3 doors to a lecture room. In how many ways can a lecturer enter and leave the room?At a party, everyone shook hands with everybody else. If there were 66 handshakes, how many people were at the party?In how many different ways can the letters of the word 'OPTICAL' be arranged so that the vowels always come together?In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together?In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?In how many different ways can the letters of the word 'DETAIL' be arranged in such a way that the vowels occupy only the odd positions?