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MC-II B Question 4.23

 
 
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MC-II B Question 4.23
zhengEddy - 2018年12月22日 Saturday 12:23
 

For this question, I know how to do it, but why is it so weird? There aren't even any possible numbers that work when you do the intersection of 3 of the sets or all 4. Am I doing something wrong?

 
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Re: MC-II B Question 4.23
ReynosoDavid - 2019年01月10日 Thursday 10:39
 

Hey Eddy! This happens in a lot of problems. It is good practice to do problems like this so that we can realize that sometimes the intersection of some of the sets will be empty.

 
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