se pigeonhole principle 1. A drawer holds a dozen unmatched brown socks and a dozen unmatched black socks. In the dark, a man pulls socks at random. How many socks must he remove to ensure that he has at least one pair of socks that are the same color? 2. In a drawer, there are a dozen brown socks and a dozen black socks that are unmatched. In the dark, a man pulls socks at random. How many socks does he need to take out to ensure he has at least two pairs of the same color?
se pigeonhole principle 1. A drawer holds a dozen unmatched brown socks and a dozen unmatched black socks. In the dark, a man pulls socks at random. How many socks must he remove to ensure that he has at least one pair of socks that are the same color? 2. In a drawer, there are a dozen brown socks and a dozen black socks that are unmatched. In the dark, a man pulls socks at random. How many socks does he need to take out to ensure he has at least two pairs of the same color?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Use pigeonhole principle
1. A drawer holds a dozen unmatched brown socks and a dozen unmatched black socks.
In the dark, a man pulls socks at random.
How many socks must he remove to ensure that he has at least one pair of socks that are the same color?
2. In a drawer, there are a dozen brown socks and a dozen black socks that are unmatched.
In the dark, a man pulls socks at random.
How many socks does he need to take out to ensure he has at least two pairs of the same color?
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