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A certain lab experiments with white and brown mice only. In one experiment, 2/3
A certain lab experiments with white and brown mice only. In one experiment, 2/3
游客
2025-02-27
23
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问题
A certain lab experiments with white and brown mice only. In one experiment, 2/3 of the mice are white. If there are 13 brown mice in the experiment, how many mice in total are in the experiment?
选项
A、39
B、33
C、26
D、21
E、10
答案
A
解析
Brown mice make up 1/3 of the mice in the experiment, so the total number of mice is 13×3=39.
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