Upper Elementary:
Question: Twenty-four students split up into groups for music class. A third of the students are in the percussion group. Half of the students are in the choir group. The rest of the students are in the guitar group. How many students are there in the guitar group?
Answer: 4 students
Solution: One third of 24 is 24 ÷ 3 = 8 students, so there are 8 students in the percussion group. Half of 24 is 12, so there are 12 students in the choir group. That leaves 24 – 8 – 12 = 4 students in the guitar group.
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