A candy and nut company sells a bag of candy that contains a mixture of just lollypops and chocolate bars. The ratio of lollypops to chocolate bars in the bag is 3:5, and the difference between the number of lollypops and the number of chocolate bars is 18. What is the total number of candies in the bag?

The ACT Mathematics Test contains 60 questions to be answered in 60 minutes.  The hardest ACT math questions (the last 10 to 15 questions) fall into two types: advanced concepts and complex questions. Advanced concepts questions cover what you learn in precalculus and trigonometry. FYI: Students that get into Harvard College have an ACT score of 34–36.