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Combinations Videos 11 videos
ACT Math: Pre-Algebra Drill 6, Problem 1. How many different outfits can be made from a choice between three different shirts, four different pairs...
A combination is a set of objects in which the order doesn't matter. According to those sandwich artists at Subway, there are over 2,000,000 sandwi...
It's important to have principles. “No stealing” and “not letting anyone infringe on your inalienable rights” are good ones, but we're part...
Counting Principle 1118 Views
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Description:
It's important to have principles. “No stealing” and “not letting anyone infringe on your inalienable rights” are good ones, but we're partial to the counting principle.
Transcript
- 00:04
Counting Principle, a la Shmoop. Dagun-Ra, Lord High Chancellor of the Volcano
- 00:12
people, is in a pickle.
- 00:16
It is Dagun-Ra's duty to choose those who will be sacrificed to Mount Lascivious.
- 00:23
But he's so bad at making decisions. He must choose to sacrifice one of the town's
- 00:34
goats, Alfred, Bobo or Chewy…
Full Transcript
- 00:40
…one of the town's donkeys, Darius, Eeyore or Fartsy…
- 00:48
…and one of the town's lawyers, Geoff, Harper, Irving or Jarvis.
- 00:56
He briefly considers just tossing in all of the lawyers, but he doesn't want to upset
- 01:08
the Volcano god. How many different combinations does Dagun-Ra
- 01:13
have to choose from?
- 01:15
Here are your options: First things first - we need to count up the
- 01:23
number of options for each category.
- 01:26
Looks like we're working with three goats…
- 01:28
…three donkeys…
- 01:29
…and four lawyers. To find the total number of combinations,
- 01:33
we would simply multiply those three numbers together.
- 01:36
Three times three times four equals… 36. Answer "E."
- 01:50
It takes him a while, but Dagun-Ra finally narrows his list of 36 possibilities down
- 02:23
to one.
- 02:26
Into the volcano go Chewy, Fartsy and Jarvis.
- 02:31
For at least another year, the volcano should have no further need for animal or human sacrifice.
- 02:45
Or for free legal advice.
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