急= 口=!明天要交的.The following pie chart shows the grades obtained by a group of students in a Mathematics public examination.附图：（a）If there are 8 students obtaining grade F,how many students are there in this group?（b） Which g

急= 口=!明天要交的.The following pie chart shows the grades obtained by a group of students in a Mathematics public examination.附图：（a）If there are 8 students obtaining grade F,how many students are there in this group?（b） Which g
急= 口=!明天要交的.
The following pie chart shows the grades obtained by a group of students in a Mathematics public examination.
附图：




（a）If there are 8 students obtaining grade F,how many students are there in this group?
（b） Which grade do most of the students obtain?How many students obtain that grade?
(c) How many students obtain grade A,grade B or grade

急= 口=!明天要交的.The following pie chart shows the grades obtained by a group of students in a Mathematics public examination.附图：（a）If there are 8 students obtaining grade F,how many students are there in this group?（b） Which g
（a）F=1-15%-17.5%-10%-10%-27.5%=20%
8/20%=40
so there are 40 students in this groups
（b）E 27.5%*40=11
c) grade A 15%*40=6
grade B 17.5%*40=7
grade C 10%*40=4

1.F 0.2
8/0.2=40人
2.E11人
3.A6人,b7人，C4人

看懂题目就很简单了。题目翻译如下：
下图为一批学生在数学考试中的得分比例图。
问题1：如果得F的学生有8个人，请问这组学生共有几人
问题2：哪个得分的学生人数最多？有多少人？
问题3：有多少学生获得分A，有多少学生得分B，有多少学生得分C
按照整圆为100%，可以得出得分F的学生占总人数的比例，由此可以计算出总人数。
以下的问题就很简单了。不用作答了...

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看懂题目就很简单了。题目翻译如下：
下图为一批学生在数学考试中的得分比例图。
问题1：如果得F的学生有8个人，请问这组学生共有几人
问题2：哪个得分的学生人数最多？有多少人？
问题3：有多少学生获得分A，有多少学生得分B，有多少学生得分C
按照整圆为100%，可以得出得分F的学生占总人数的比例，由此可以计算出总人数。
以下的问题就很简单了。不用作答了吧。

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（a）If there are 8 students obtaining grade F, how many students are there in this group?
how many students=8/(1-0.15-0.175-0.1-0.1-0.275),计算就该你了。
（b） Which grade do most of the students obta...

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（a）If there are 8 students obtaining grade F, how many students are there in this group?
how many students=8/(1-0.15-0.175-0.1-0.1-0.275),计算就该你了。
（b） Which grade do most of the students obtain? How many students obtain that grade?
最大的当然是取得成绩E了，多少人就等于第一问的结果再乘以27。5%，即得到结果。
(c) How many students obtain grade A, grade B or grade C?
用第一问求得结果再分别乘以15%，17.5%，10%，既可分别得到obtain grade A, grade B or grade C各自有多少人了。
希望你也动动手，对你有好处哦。。。

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