There are 12 boys and 8 girls in a group. What percentage of the group are boys? A. 60% B. 40% C. 50% D. 70% 相关知识点: 试题来源: 解析 A。解析:总人数是 12 加 8 等于 20 人,男孩占的比例是 12 除以 20 乘以 100%等于 60%。
The ratio of boys to girls in the class is 3:2. What percentage of the class are boys? A. 60% B. 40% C. 50% D. 30% 相关知识点: 试题来源: 解析 A。本题考查比例和百分数的换算。男孩和女孩的比例是 3:2,总份数是 5,男孩占 3 份,所以男孩所占比例为 3÷5 = 0.6,化为百分数是 ...
In a class, 2/5 of the students are boys. What percentage of the students are boys? A. 20% B. 40% C. 60% D. 80% 相关知识点: 试题来源: 解析 B。2/5 变为百分数,2÷5=0.4,0.4×100%=40%。A 选项 20%错误是因为计算错误。C 选项 60%与题目所给分数不符。D 选项 80%也与题目所...
The school has 1200 students. 600 students are boys. What percentage of students are boys? ___. A. twenty-five percent B. thirty percent C. fifty percent D. seventy-five percent 相关知识点: 试题来源: 解析 C。本题考查百分数的计算。一共有 1200 个学生,600 个是男生,男生比例为 600÷1200...
In a class, 4/9 of the students are boys. What percentage of the students are boys approximately? A. 40% B. 44.4% C. 50% D. 55.5% 相关知识点: 试题来源: 解析 B。解析:4÷9≈0.444,转化为百分数约为44.4%,选项A是40%,选项C是50%,选项D是55.5%,都不符合计算结果,所以选B。 反馈 ...
Two fifths of the students in our class are boys. What percentage of the students are girls? A. 40% B. 60% C. 30% D. 70% 相关知识点: 试题来源: 解析 B。本题考查分数与百分数的转换。班级里五分之二是男生,那么女生占五分之三,五分之三转换为百分数是 60%,所以选 B。A 选项 40%不...
百度试题 结果1 题目24. What is the percentage(百分 ) of the boys who want to be teachers? A.5 B.15%. C.30%. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
A. of B. in C. on D. at 相关知识点: 试题来源: 解析 A。本题考查介词的用法。“the percentage of boys in our class”表示“我们班男生的比例”,用“of”表示所属关系。“in”表示在……里面;“on”表示在……上面;“at”表示在某个具体的地点或时间。反馈...
百度试题 结果1 题目3. What's the percentage (percent) of boys in newly-born infants this year? 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Three quarters of the students in our class are boys. What percentage is that? A. 25% B. 50% C. 75% D. 100% 相关知识点: 试题来源: 解析 C。三个四分之一就是四分之三,四分之三转化为百分数就是 75%,所以选择 C。这道题主要考查分数与百分数的转换,要记住四分之三等于 75%这个常见的...