Q : 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?
(A) 220
(B) 520
(C) 720
(D) 450
Correct Answer : C
Q : From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?
(A) 756
(B) 465
(C) 546
(D) 835
Correct Answer : A
Q : In how many different ways can the letters of the word 'DETAIL' be arranged such that the vowels must occupy only the odd positions?