How many 3-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
Correct Answer : A
In how many different ways can the letters of the word 'DETAIL' be arranged such that the vowels must occupy only the odd positions?
In how many different ways can 5 girls and 5 boys form a circle such that the boys and the girls alternate?
How many 6 digit telephone numbers can be formed if each number starts with 35 and no digit appears more than once?