Logic Word Problem…?

This problem seem to be missing clues or something… Is it me? or am I not getting it?

Help…

“Schoolmates”

Alice, Brett, Cahterine and Deirdre went to school together. They became, but no necessarily respectively, an author, a biologist, a cartoonist and a doctor. Years before, they belonged to A, B, C, and D sororities and they came from Australia, Brazil, Canada and Denmark. The letters of each women’s sorority house, the initial letters of her profession, her home country, and her name are all different from each other. The doctor had never been to Brazil, and the biologist had never been to Canada.
Back at school, Catherine, and the girl from Australia, and the biologist used to spend all their spare time together.

What was the profession, the home country, and the sorority house of each of them?

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Give me some hints or something…. thanks people!

Call me a nerd, but I used to like these in elementary school. haha.. anyway, easist way (for me) is to make a chart with all your info (names, professions, sororities, and location) on both top and side. It IS a little time consuming to make, but it will allow you to have all your eliminations right there in one place. If you have graph paper, it might be a little easier and less messy. Group them like this:

Alice|Brett|Catherine|Deirdre||author|biologist|…. etc all on top.

Alice
Brett
Catherine
Deirdre
author
biologist
cartoonist
…etc. on the side

ALSO, separate the groups with a bolder line than the rest of your lines (names -bold line- professions -bold line- sororities -bold line- location), so that it looks like you have 16 smaller squares in one larger square, and 16 of the larger squares in your one big chart.

Still with me?

Once you finish with that, place X’s in the boxes that you know are wrong. Such as Alice cannot be the author, in sorority A, or in Australia, so go down Alice’s column and X out the box where author and Alice meet, where Australia and Alice meet and where A and Alice meet. You must also go across Alice’s row and X those. Do the same for each person with the same beginning letters (Brett’s will be B’s, etc).

At the same time, you know the biologist cannot be from Brazil or in B, so place your X’s in the biologist’s column and row where it doesn’t belong. Do the same for the professions and sororities (A isn’t from Australia), etc.

When you finish with the obvious ones, that’s when you have to start reading into your clues in the problem.

“The doctor had never been to Brazil and the biologist had never been to Canada.”

So, you put an X in the doctor’s column and row at Brazil, and in the biologist’s column and row at Canada.

“Catherine, and the girl from Australia, and the biologist…” tells you Cathy isn’t from Australia, nor is she the biologist. So, what do you do? Place your X’s in her column and row on Australia and biologist. Same for Australia’s column and row on biologist.

Now, if you look at your biologist’s column and row, you should see that he/she isn’t from Australia, Brazil, or Canada, leaving Denmark wide open. So put a circle there, so you know not to X it on accident. Since you know the biologist is from Denmark, you can X out the other professions still open in Denmark’s column and row.

Go back to Cathy. If Cathy isn’t the biologist and the biologist is from Denmark, you can X out Denmark in her column and row. You should be left with Brazil. So X out the other names in Brazil col. and row. If Cathy is from Brazil, and the doctor has never been to Brazil (read your word problem), that tells you Cathy isn’t the doctor. X it out and you are left with Author.

If Cathy is a Brazilian author, and she can’t be in sorority C (because of her name), B (Brazil and B can’t match), or A (author), then she was on D.

Now you should go back and X out all the things you have just found out (Brazil’s profession and sorority, etc).

If you keep doing this, you should be able to eliminate and figure out who belongs where. Remember, the biggest hint is, the name of the places, names, etc, can’t have the same first letter.

In the end, you should have this:

Alice is a biologist in sorority C from Denmark.
Brett is a doctor in sorority A from Canada.
Catherine is an author in sorority D from Brazil.
Deirdre is a cartoonist in sorority B from Australia.