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Math Upper primary

拔河比赛

比和比例

Shared by Rose 1 hour ago 8 Q Adopted 0 times
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1

最简化 35:5

A 4:1
B 3:1
C 7:1
D 8:1
2

最简化 6:12

A 3:6
B 1:2
C 1:4
D 4:3
3

最简化 27:18

A 3:2
B 2:5
C 3:4
D 7:9
4

你有120个红色气球。红色气球的数量与蓝色气球的比是5:3。计算蓝色气球的数量。

A 72
B 87
C 77
D 54
5

你妈妈把一些黑袜子和白袜子放在架子上。黑袜子数量与白袜子数量的比是5:1。黑袜子一共有240双。计算袜子的总数。

A 288
B 420
C 158
D 178

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