An auditorium has 300 seats. at the beginning of a concert,100 people were in the auditorium. every 10 minutes,15 people leave and 40 people sit down. if this continues, how long will it take for the auditorium to be full?

The academic affairs council is the highest expert body processing academic affairs, as stipulated by the university statutes. specialist aaro häkkinen (educational policy) took part in the council’s meeting. the agenda of the meeting included bachelors’ feedback, the timing of pedagogical studies, the grant system for tuition fees, the standardisation of administrative practices for internships and the situation of foreign-language and multilingual master’s programmes.