Both the players will be on the pitch after 20 days.
Step-by-step explanation:
Given,
Baseball player pitches every fifth day.
Opposing player pitches every fourth day.
Therefore,
we will find least common factor of both.
4 = 4,8,16,20,24,28,....
5 = 5,10,15,20,25,30,.....
The least common factor of 4 and 5 is 20.
Therefore,
Both the players will be on the pitch after 20 days.
Keywords: least common factor
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