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Vacation Books

Math brain teasers require computations to solve.

 

Puzzle ID:#31530
Fun:*** (2.17)
Difficulty:** (1.4)
Category:Math
Submitted By:holly1447591Aus****

 

 

 



Morgan came home from her vacation at Grandma's with 6 books. While she was away she purchased 3 books at the book store and got 1 book as a gift. During her stay at Grandma's, she also gave her cousin the 2 books that she finished.

How many books did she take with her when she left for her trip?

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Answer

Morgan started with 4 books.

This is one way to work backwards:

Morgan returned with 6 books.

She gave away 2 of the books that she had.
So add those two books back to her total.
6 + 2 = 8

She had received 1 book that she had not brought with her.
So subtract that book from her total.
8 - 1 = 7

She bought 3 books that she had not brought with her.
So subtract those books from her total.
7 - 3 = 4

She must have left for vacation with 4 books.

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Comments

danielzermanAau*
Jul 04, 2006

great one i loved it
Nellem*ie*
Jul 04, 2006

I like this type of short and snappy math teaser - and an easy one is a nice change!
stil*us*
Jul 04, 2006

good word problem - so-so teaser
Cogmatic*de*
Jul 06, 2006

I wouldn't really call this a teaser. It's more of a basic grade school word problem. In other words, this was a really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, really, easy.



You're the one in the middle. Everyone else and I are the ones that are laughing. The truth hurts. Deal with it.
barrom*au
Jul 09, 2006

What Cogmatic said was cruel, and should have been removed from this site. Although that I must admit that this teaser was incredibly easy, it was fun - I was glad not to see just tedious sums which are only applicable to a small amount of viewers (because they are based on things that only people from a certain country/religion can understand). Even though challenges are usually fun, this was one which I think will be a hit with younger viewers. Good effort!
mmmcla01A*
Jul 18, 2006

Cogmatic-why do you have to be so mean? There are a lot easy teasers...that doesn't make them any less fun and enjoyable!

And why bother even posting a comment just to hurt someone's feelings? It is a MAJOR waste of time!

Although this teaser was very simple, it ws fun...it's nice to have something easy once in a while so you don't have to totally drive yourself crazy! Good Job!!
mmmcla01A*
Jul 18, 2006

Oops...
mmmcla01A*
Jul 18, 2006

(was)...not ws!!
4demo*
Jul 18, 2006

A fun teaser, although it was easy!
javaguru*us*
Jan 28, 2009

While I don't agree with how he said it, Cogmatic's assessment of the "teaser" is spot-on. This is a word problem you'd expect to encounter in kindergarten or first grade.

That it has a 2.25 fun and 1.44 difficulty rating is a mockery of the rating system, which admittedly already mostly a popularity contest for the person who submitted the teaser and not a useful rating system.


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