Club X has more than 50 but fewer than 80 members. Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3 members at one table and 5 members at each of the other tables. If they sit at tables with 6 members at each table except one and fewer than 6 members at that one table, how many members will be at the table that has fewer than 6 members?
Pick:  A) 1  B) 2  C) 3  D) 4  E) 5
The number of members is 4j+3 = 5k+3.   Let's start at 4(12)+3 = 51 and keep adding 4 until we find a number in the form 5k+3.   51, 55, 59, 63 = 5(12) + 3   The club has 63 members.   63/6 = 6(10) + 3   The answer is 3.
<result>C</result>
Club X has more than 50 but fewer than 80 members. Sometimes the members sit at tables with 3 members at one table and 4 members at each of the other tables, and sometimes they sit at tables with 3 members at one table and 5 members at each of the other tables. If they sit at tables with 6 members at each table except one and fewer than 6 members at that one table, how many members will be at the table that has fewer than 6 members?