要求讨论

daydream

149、a>1，问a等于几？a3能被a整除，2）a6能被a整除，这道题我一确认就发现错了，呜呜。。
[确认]A
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应该是E吧? 1和2都推出A为任意数.

368.DS The number of boys in a class and the number of the totle of boys and girls who take the course of biology is shown in the form blew, How many is all the boys and girls in the class.
表格 take biology not take biology totle
-- ------------------------------------------------------------------
boy 28
-------------- ----------------------------------------------------------
girl
-----------------------------------------------------------------------
totle 36
1. There are 15 boys who do take biology
2. The girls in the class is twice as many as the totle of boys and girls who do not take biology
[确认]B
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如果TOTAL 36 是指take biology 的 girls and boys. 我的答案: C

tongxun

149、只有33。
368、图行乱了。你的考虑是对的，但在考试中遇到的图形跟这个不一样。

daydream

TO:tongxun
你的意思A3是一个两位数而不是A*3?

chnp

应该是十位数是a吧，要不然题目没意义了，应该是both sufficient吧。a=3