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  3. Bernie has already read 1/5 of his biology homework on Monday night. What fracti

Bernie has already read 1/5 of his biology homework on Monday night. What fracti

游客2024-01-12  43
问题 Bernie has already read 1/5 of his biology homework on Monday night. What fraction of his remaining homework would Bernie have to read on Tuesday night in order to have read 2/3 of his original biology assignment?
选项 A、7/10
B、7/12
C、2/15
D、2/3
E、1/15
答案 B
解析 本题的关键在于考生读题时需要注意what fraction of his remaining homework，问题问的是剩下作业的几分之几，而不是所有作业的几分之几。所以分母不是1，而是剩下的4/5作业，。
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