Problem 72
Question
Exercises \(67-72\) are based on the following jokes about books: \(\cdot\) "Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read." - Groucho Marx \(\cdot\) "I recently bought a book of free verse. For \(\$ 12\)." \- George Carlin \(\cdot\) "If a word in the dictionary was misspelled, how would we know?" - Steven Wright \(\cdot\) "Encyclopedia is a Latin term. It means 'to paraphrase a term paper." - Greg Ray \(\cdot\) "A bookstore is one of the only pieces of evidence we have that people are still thinking." - Jerry Seinfeld \(\cdot\) "I honestly believe there is absolutely nothing like going to bed with a good book. Or a friend who's read one." \(-\)Phyllis Diller If the order in which these jokes are told makes a difference in terms of how they are received, how many ways can they be delivered if a joke by a man is told first?
Step-by-Step Solution
VerifiedKey Concepts
Jokes
Order
In this exercise, the task is to find how many different ways the jokes can be ordered, considering that a man must deliver the first joke. Once the primary condition is set, ordering the remaining jokes ensures a variety of comedic experiences.
- The first position is crucial and is specified to be filled by a joke from a male comedian. This sets the stage for the rest of the sequence.
- Each subsequent joke can still alter perception and reception, emphasizing the importance of order in comedy delivery.
Gender
- According to the problem, a male’s joke must always start the sequence. This means that there's a greater probability of permutations beginning with one of the five jokes told by men.
- The female joke is not restricted to any specific position, only that it may follow any man's joke. This wider range adds a layer of flexibility to the arrangement.
Calculation
- Firstly, since a male’s joke must go first, choose from any of the five men's jokes, giving us 5 possibilities for the first joke.
- Once the first male joke is chosen, the remaining sets of jokes allow us to arrange the other men's jokes in a variety of sequences, calculated as a factorial of the remaining joke count. Here, with four jokes left to arrange from the men, it's 4! which is 24.
- The woman's joke can be inserted at any of the intervening spots within the sequence of men's jokes. This gives us five possible slots for this insertion.