Mathematics第 56 / 120 题
A class has 18 girls and 12 boys. What percentage of the class is boys?
a.40%
b.30%
c.45%
d.60%
解析
Total students = 18 + 12 = 30. Boys make up 12/30 = 0.4 = 40% of the class.
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Total students = 18 + 12 = 30. Boys make up 12/30 = 0.4 = 40% of the class.
免费刷完整 120 道题库 — 无需注册。