Someone stole 100 bucks from a store, he comeback and buy an something that cost $70 and pay with $100 he stole earlier, the store's owner gave him 30 bucks back as change.

How much money the store lost?

Alright, let's walk through this scenario ... Together! = D

So, this guy walks in this store like he owns the place. He just walks up, takes 100 bucks, and goes on his way.

However ... This man forgot one thing. He forgot the new incredible toaster blazer that he wanted to buy!

So, he walks in. It costs $70, but that's nothing! He has the $100 bill from earlier to cover it.

So, he puts it on the counter - somehow he isn't recognised, and he gives them the $100 bill which mysteriously looks similar to the one they lost just 5 seconds ago, but no one notices.

Now, they give him $30 back in change - and now we're left with the question.

How much money did the store lose?

The store lost $100! Look at the other response, they explained it very well. = )

The store lost $ 70 worth of merchandise and $ 30 cash.

someone stole 100 ... but then they " swapped " the 100 and got 70 worth of stuff and 30 change back ... so the store lost $ 100 worth of merchandise and cash