Full question:

You are meeting in a bar with your best friend, Alex.

You ordered 60 ounces (3 Imperial pints) beer pitcher to drink between you. Alex is late and you drink half of a pitcher while waiting for him.

Then he finaly arrives you give the pitcher to Alex and he drinks half of what’s left, and gives it back to you.
You drink half of what’s left, and give it back to him ... you continue in the same way until there is no beer left.

Question: How much do you drink, and how much does Alex drink ?





Answers and Comments


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Written by tly_alex


You drink 1/2 + 1/8 + 1/32 + ....while alex drink 1/4 + 1/16 + 1/64.
so you drink 2/3. while alex drinks 1/3.
so 40 ounces vs 20 ounces.


Alex always drinks half of your portion so assuming 1 is a total, we can get follong equation

U+U/2 = 1

Which means 3U = 2 and U=2/3, which leave Alex with 1/3


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