CREATE TABLE table_24240 ("Nr." FLOAT, "District" CLOB, "Former Name" CLOB, "Area  (  ha  ) " FLOAT, "Population  ( 2005 ) " FLOAT, "No. of villages" FLOAT, "Density persons / ha" CLOB)

How many villages have a density persons/ha of 5.5?
SELECT COUNT("No. of villages") FROM table_24240 WHERE "Density persons / ha" = '5.5'
SELECT COUNT("No. of villages") FROM "table_24240" WHERE "Density persons / ha" = '5.5'