help IQ test?
A college professor teaches a class of 80 students. Fourteen students are business majors, six are education majors, and the rest are undecided. What percentage of the class is undecided?
- GypsyfishLv 74 weeks ago
That is not an IQ test- it's a math achievement test. You have to have learned how to figure percentages. REAL IQ tests- which are administered by trained psychologists- are intended to predict the ability to learn, not measure what has already been learned.
There are 20 students who have declared majors, meaning that there are 60 who are undecided. To get a percentage, you divide the smaller number by the larger one - 60 divided by 80.
- RichardLv 74 weeks ago
80 students = 14 business majors + 6 education majors + 60 undecided.
60/80 = .75 (or 75%) undecided