question: In a 60-item quiz, 40% of the questions are easy, and the rest are equally divided as average and difficult questions. If Aries is sure to get 75% of the easy questions, and half of the average and difficult questions correctly, how many points is she sure to get?
answer: The average and difficult questions comprises 100% - 40% = 60% of the quiz.
  There are 60 questions x 40/100 = <<60*40/100=24>>24 easy questions.
  There are a total of 60 questions x 60/100 = <<60*60/100=36>>36 average and difficult questions.
  If Aries is sure to get 75% of the easy questions, then this means she is sure of her 24 questions x 75/100 = <<24*75/100=18>>18 points.
  From the average and difficult questions, she is sure to get half of it correctly so that is 36 questions / 2 = <<36/2=18>>18 points.
  Thus, she is sure of getting 18 points + 18 points = <<18+18=36>>36 points in her quiz.
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