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#The_average_age_of_a_teacher_and_three_students_is_20_years. #If_all_the_three_students_are_of_same_age #and_the_difference_between_the_age_of_the_teacher_and_each_student_is_20_years #then_what_is_the_age_of_the_teacher? #csat #csat_2020 #csat_2024 #00:00_The_average_age_of_a_teacher_and_three_students_is_20_years.Комментарии: