SELECT count(DISTINCT T2.Language) FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code  =  T2.CountryCode WHERE  IndepYear  <  1930 AND T2.IsOfficial  =  "T"
For the countries founded before 1930, what is the total number of distinct official languages?
SELECT count ( DISTINCT T2.Language ) FROM country AS T1 JOIN countrylanguage AS T2 ON T1.Code = T2.CountryCode WHERE IndepYear < 1930 AND T2.IsOfficial = `` T ''
select count ( distinct t2 . language ) from country as t1 join countrylanguage as t2 on t1 . code = t2 . countrycode where indepyear < value and t2 . isofficial = value
For the countries founded before 1930 , what is the total number of distinct official languages ?