Brainbreaker Solution
This is the solution to the brainbreaker that was published on page 9 of Global CONTACT issue 27.
Where the heck is the other hundred dollar?
The other $100 is not missing!
The illusion is that the text guided us to think that we must add everything up to get $3,000. In fact the $3,000 is no longer relevant.
The price of the instrument is $ 2,500 and add tips $200, equals $2,700!