Estimation quiz!

[rprosperi]

Albert and Werner: It's at times like this that I like to remind people this is exactly why we have calculators - when presented with a problem like this, we can carefully select the weapon of choice, perhaps an HP model not recently used, or an unusual competitive product, and bang it out.

With all due respect to your ever-obvious extreme math skills, I simply say: "Calculators gentlemen! The tool of discerning geeks everywhere"

As for the expected question of how to reply if someone puts a gun to my head and demands I solve the problem without a calculator; my reply: "shoot"