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Show that if there are 30 students in a class, then at least two have last names that begin with the same letter.

Show that if there are 30 students in a class, then at least two have last names that begin with the same letter.
asked 48.7k views
7 votes
Show that if there are 30 students in a class, then at least two have last names that begin with the same letter.

asked
User Mariolpantunes
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8.1k points

1 Answer

7 votes
using Pigeonhole Principle we have ceiling (30/26) = 2.
answered
User Milad Elyasi
by
8.8k points
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