You are a person who is organizing an event of horses. However, your employers have set certain conditions: -You can conduct the event with 20 one year old horses -You can conduct the event with 15 two year old horses -You can conduct the event with 12 five year old horses
Before getting the horses, you do not know their age, and will only get to know their age once they arrive. How many horses should you get in order for the event to take place?
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