Pigeonhole principle says that if you have more pigeons than pigeonholes, then at least one pigeonhole will get two pigeons. Use this principle to answer the ff. question: Dr. Cabatuan gives a multiple-choice quiz that has 10 questions, each with 5 possible choices, a,b,c,d,e. What is the least number of students that must be in his class in order to guarantee that at least three answer sheets must be identical? (Assume that no answers were left blank.) O 2.50 + 1 O 2.4° + 1 O 2.50 - 1 O 510 O None of the choices

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