Another way to say '25% of' is a 'quarter of'. If 12 students are a quarter of the whole class then the whole class must be 4 x 12 = 48

# On Math Test 12 Students Earned An A This Number Is 25% Of The Total Students In The Class How Many Students Are In The Class?

75% of graduating class had taken at least 8 math courses. Of the remaining members, 60% had taken 6 or 7 math courses. What percent of the remaining class members had taken fewer than 6 math courses?