Mathematical Reasoning第 43 / 120 题
The ratio of boys to girls in a class is 3:5. If there are 24 students, how many are girls?
a.9
b.12
c.15
d.18
解析
The ratio 3:5 has 8 parts total, so each part equals 24 ÷ 8 = 3 students. Girls make up 5 parts: 5 × 3 = 15. Ratios divide a whole into proportional shares.
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