Ten percent of the members of a class are in the skiing club. Among the members of the class who are not in the skiing club, 40 have previously skied in their lives and 41 have never skied. How many members are there in the class?
Ten percent of the members of a class are in the skiing club. Among the members of the class who are not in the skiing club, 40 have previously skied in their lives and 41 have never skied. How many members are there in the class?