Please help on these couples of JJ
For the 1st one, I have no clue, is it E? How to do it?
For the second one, quite a few people think it should be 8. But shouldn't be 12? (suppose W=x*x*y*z, then the factors are 1, x, y, z, x*x, x*y, x*z, y*z, x*x*y, x*x*z, x*y*z, x*x*y*z)
Am I mistaking something?
For the third one, quite a few people think it should be B. No clue, how to do it?
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#1. DS: 问a less than b?
1) a 除以 b,余数为8
2) b 除以 a,余数为7
#2. 一个整数可以分解为4个质数的乘积,其中两个相同。问它有几个因子。
#3. DS: Club B member >10, Club A中是club B的占30%, ASK which has more members.
1) club B has 600 members
2) Club B中是club A的占40%
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