On Thu, 07 Jan 2010 16:26:33 -0700, Dave wrote:

I'm working on a puzzle (game) that I can't seem to figure out.

http://i204.photobucket.com/albums/b...h/image003.jpg

Both puzzles are on 12 volt electrical circuits with
incandescent lights on the top puzzle and LED lights on the bottom puzzle.

The answer for the top puzzle should be something in the neighborhood of
33 and the answer to the bottom puzzle should be in the neighborhood of
-112.

I have no information about what the numbers given represent. I've
tried a few calculations solving for watts, amps and ohms and I can't
seem to come anywhere near the expected results.

I'm thinking there is something in the way they are configured that
makes this more of a simple add-em-up type of solution.

Any help or hints would be greatly appreciated!
For the top puzzle, try solving the circuit with the numbers being
ohms resistance, and then possibly solve for power?

The total equivalent resistance of the circuit is 4.1433 ohms, = 2.89
amps X 12 volts = 34.7 watts.

I think that solves the top one.


The bottom one is a bit more challenging -
It likely has something to do with the different forward voltages
between red and yellow LEDs., and the way they are connected - but the
units used remain the first part of the puzzle. The top puzzle is
obviously ohms, and solved for watts.