Aptitude Test Exam Numerical Ability Permutation and Combination

Out of 5 men and 3 women, a committee of 4 member is to be formed.In how many ways can it be done if the committee includes at least one woman?

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Aptitude Test Other Question

If we permute 6 Letters of the word 'SYSTEM', the number of permute words with a vowel at the third place are:
a) 720
b)120
c)60
d)24
One card is drawn from a pack of 52 cards. each of the 52 cards being equally likely to be drawn. find the probability that the card drawn is '9' or hearts.
a)1/13
b)1/26
c)1/52
d)3/52