SAT Math Practice Question #37741 - SATify | SATify
#37741
word problem
data analysis
average
arithmetic mean
statistics
easy
60 sec
Calculator OK
A small class has 10 students whose average score on a math test was 80. Another class has 15 students whose average score on the same test was 90. If these two classes are combined, what is the average score of all the students?
