A man has 68 socks his drawer: 35 identical blue, 20 identical black and 13 identical red. The lights are out and he is completely in the dark. How many socks must he take out to make 100% certain he has at least one pair of black socks?
A man has 68 socks his drawer: 35 identical blue, 20 identical black and 13 identical red. The lights are out and he is completely in the dark. How many socks must he take out to make 100% certain he has at least one pair of black socks?
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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Explain.
![78 9
A man has 68 socks his drawer: 35
identical blue, 20 identical black and
13 identical red. The lights are out
and he is completely in the dark. How
many socks must he take out to make
100% certain he has at least one pair
of black socks?
318](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff650a158-d3e9-4396-958d-f5b31c67ca5e%2F3f36da9d-d245-4dbe-bbf6-80bd5051e41a%2Fb038odx_processed.jpeg&w=3840&q=75)
Transcribed Image Text:78 9
A man has 68 socks his drawer: 35
identical blue, 20 identical black and
13 identical red. The lights are out
and he is completely in the dark. How
many socks must he take out to make
100% certain he has at least one pair
of black socks?
318
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