Click and drag the steps to show that at least three of any 25 days chosen must fall in the same month of the year. There will be 3.12 = 36 chosen days in 12months.Hence, three chosen days must fall in thesame month.Then, there will be at most 2.12 = 24chosen days in 12 months.This contradicts the assumption that we have25 days.Assume there were at most three chosendays falling in the same month.Assume there were at most two chosendays falling into any one month.

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Click and drag the steps to show that at least three of any 25 days chosen must fall in the same month of the year.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Click and drag the steps to show that at least three of any 25 days chosen must fall in the same month of the year.

There will be 3.12 = 36 chosen days in 12
months.
Hence, three chosen days must fall in the
same month.
Then, there will be at most 2.12 = 24
chosen days in 12 months.
This contradicts the assumption that we have
25 days.
Assume there were at most three chosen
days falling in the same month.
Assume there were at most two chosen
days falling into any one month.

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