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Which number is missing from the third circle?[img]2011q4/ct_eyyjsbz2007_eyyjsb
Which number is missing from the third circle?[img]2011q4/ct_eyyjsbz2007_eyyjsb
游客
2023-10-15
9
管理
问题
Which number is missing from the third circle?
选项
A、92
B、93
C、94
D、95
答案
B
解析
通过观察这三幅图,可以得出如下三个数学等式:①87+57+36=180;②49+23+18=90;③6÷18=2。观察①,②等式可以得出,第1个图中数字之和是第2个图中数字之和的2倍。而第3个图中的27是第1个图中的36的3/4;第3个图中的和为180×3/4=135。135-5-27=93。
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