Question

Exercises
1. Show that in any set of six classes, each meeting regu-
larly once a week on a particular day of the week, there
must be two that meet on the same day, assuming that no
classes are held on weekends.
2. Show that if there are 30 students in a class, then at least
two have last names that begin with the same letter.
(2. Show that if there are 30 students in a class, then at least
doron black​

Answer 1

Step-by-step explanation:

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