How many people have attended Susanne's birthday party?
(1) If, in addition to all those who attended, the 3 friends who take bass classes with her had come, there would have been at least 20 people at the party. (2) If no other person had attended and the 3 friends who live in another town had not made it to the party, the attendance would have been below 15 people.
(1) If, in addition to all those who attended, the 3 friends who take bass classes with her had come, there would have been at least 20 people at the party. (2) If no other person had attended and the 3 friends who live in another town had not made it to the party, the attendance would have been below 15 people.
