2. Two math teachers are conducting a geometry test, checking each 10th-grade student's ability to solve problems and their knowledge of theory. The first teacher spends 5 and 7 minutes per student, respectively, while the second teacher spends 3 and 4 minutes per student. What is the minimum time required for them to interview 25 students?

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# Answer: 110 minutes.

Solution: fully corresponds to the solution of problem 2, option 1.