Database: club_1
Question: Find the average age of the members in the club "Bootup Baltimore".
SQL:
SELECT avg(t3.age) FROM club AS t1 JOIN member_of_club AS t2 ON t1.clubid  =  t2.clubid JOIN student AS t3 ON t2.stuid  =  t3.stuid WHERE t1.clubname  =  "Bootup Baltimore"