Twenty-five slips of paper, numbered 1, 2, 3, ... , 25, are placed in a box. If

Question:

Twenty-five slips of paper, numbered 1, 2, 3, ... , 25, are placed in a box. If Amy draws six of these slips, without replacement, what is the probability that
(a) The second smallest number drawn is 5?
(b) The fourth largest number drawn is 15?
(c) The second smallest number drawn is 5 and the fourth largest number drawn is 15?