Question 1120447
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(a) 4! = 24 ways.  Any of the 4 first; then any of the remaining 3 next; then either of the other 2, then the last 1.<br>
(b) Either Tyrone or Jim can arrive second and then the other arrives third: 2 ways.<br>
(c) The answer to (b) divided by the answer to (a); 2 ways for that to happen, out of a total of 24 different possible ways: 2/24 = 1/12.