Total number of students in School B and School C together in the year 2004 was approximately what percentage of the total number of students in school B and school C together in the year 2007?
85
Total number of students in schools B and C in 2004 =2.5+3=5.5 thousand.
Total number of students in schools B and C in 2007 =3.5+3=6.5 thousand.
Therefore required percentage =5.56.5×100 = 84.61 = 85% approximately