Answers must be in 4 decimals 1.At a breakfast buffet, 93 people chose coffee only and 47 people chose juice only. 25 people chose both coffee and juice. If each person chose at least one of these beverages, how many people visited the buffet? 2. In Su, students are to elect 7 representatives for student's council. There were 20 names on the ballot paper. There are 11 boys and 9 girls contesting the election, how many committees of 4 boys and 3 girls can be formed?

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