Topic

比与比例

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Quizzes in 比与比例

数学算术与数系

两数比为3:4，且它们的和为42，求这两个数。

18 and 24
12 and 30
21 and 21
15 and 27

Correct answer(s):

18 and 24

数学算术与数系

若某数的 15% 等于 45，求该原数。

200
300
450
150

Correct answer(s):

300