Your roommate has six pets (fish, cat, tur- tle, dog, rock, and pony). He will take three of his six pets with him as he skips town and leaves you to pay rent. How many different collections of pets can he take if he cannot take both the dog and the cat (because they will fight like cats and dogs)?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Your roommate has six pets (fish, cat, tur-
tle, dog, rock, and pony). He will take three
of his six pets with him as he skips town and
leaves you to pay rent. How many different
collections of pets can he take if he cannot
take both the dog and the cat (because they
will fight like cats and dogs)?
Transcribed Image Text:Your roommate has six pets (fish, cat, tur- tle, dog, rock, and pony). He will take three of his six pets with him as he skips town and leaves you to pay rent. How many different collections of pets can he take if he cannot take both the dog and the cat (because they will fight like cats and dogs)?
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