### Brain Teasers

# 5 Books

My best friend just left the room and told me not to touch his books, but I wanted the book back that I have let him borrow.

Not remembering which color book was mine I took them all off the shelf. The problem is I only remember a few things about the order of them and I can't seem to remember which one was mine.

I heard my friend walking back down the hall so I have to think quick.

From the information I remember about the books, can you figure out the order of the books and which one is mine?

1. The blue book is not next to the green book, and two books away from the book I let him borrow. (one book in between)

2. The yellow book is next to the blue book, but not the red book.

3. The red book is the only book that isn't three books away from any other books (2 books in between).

4. The yellow book is somewhere to the left of the green book.

5. The green book is somewhere to the left of the purple book.

Not remembering which color book was mine I took them all off the shelf. The problem is I only remember a few things about the order of them and I can't seem to remember which one was mine.

I heard my friend walking back down the hall so I have to think quick.

From the information I remember about the books, can you figure out the order of the books and which one is mine?

1. The blue book is not next to the green book, and two books away from the book I let him borrow. (one book in between)

2. The yellow book is next to the blue book, but not the red book.

3. The red book is the only book that isn't three books away from any other books (2 books in between).

4. The yellow book is somewhere to the left of the green book.

5. The green book is somewhere to the left of the purple book.

### Answer

From (3), the red book must be in the middle. The yellow book cannot be to the right of the red book, as both the green and purple books must be to its right (4,5). Nor can yellow be next to red (2), so it is in the first position. From (2), blue must be in the second position. From (5) green and purple must be in position 4 and 5, respectively.The books are therefore in this order:

yellow, blue, red, green, purple

From (1), my book is green.

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## Comments

you forgot to tell which book is the one u borrowed to him.. is it the green one?

Good job however, you forgot to tell the answer to the rest of the teaser. You must have borowed the green book, correct?

Which was yours?

Fun but confusingly worded.

Fun but confusingly worded.

Which was yours?

Fun but confusingly worded.

Fun but confusingly worded.

Yes the green book is the one i borrowed, I remembered that i forgot that right after i submitted it so i couldn't do anything about it.

Yellow, Blue, Red, Green, Purple

?

?

Nice, the way that you got across the point that the red had to be in the middle was original.

uh,...im stupid. that was super hard

you didnt show which book that you borrowed.

awesome. love this kind of teaser!

I mixed the yellow and the red book. I got the rest of them right. This was a fun teaser!!

nice

Good teaser. I got all books in correct order and guessed your book was the green one which I see from earlier comments it was. Fun.

I just love it when I get one right! thanks for a goodie.

good job

an awesome teaser, i thank you.

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