MathCastle
Counting & ProbabilityMedium

Counting & Probability · Medium problem

A store sells 55 distinct types of fruit. In how many ways can a customer buy exactly 1212 pieces of fruit such that they buy at least one apple, at least one banana, and at most 44 cherries? (Apples, bananas, and cherries are three of the five types; the other two types are unrestricted, allowing zero.)

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