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In a taste test of 200 coffee enthusiasts, 85% prefer Arabica, 80% prefer Robusta, and 75% prefer Liberica. What is the minimum number of enthusiasts who must prefer all three types of coffee?
In a taste test of 200 coffee enthusiasts, 85% prefer Arabica, 80% prefer Robusta, and 75% prefer Liberica. What is the minimum number of enthusiasts who must prefer all three types of coffee?