eli5 if something has 7% of alcohol and you drink 2 bottles of it,you don’t consume 14% of alcohol. but if a cookie has 100 calories and you eat two,you consume 200 calories. why?

Question

eli5 if something has 7% of alcohol and you drink 2 bottles of it,you don’t consume 14% of alcohol. but if a cookie has 100 calories and you eat two,you consume 200 calories. why?

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Answer 1

If I have a 1L bottle, and I fill up half with coke, and the other half, it’s 50% coke and 50% pepsi.

If I drink it, that’s 0.5L coke, and 0.5L pepsi. That’s 50% of coke.

If I make another one, again, 0.5L and 0.5L and drink that one, I’ve drunk a total of 1L coke and 1L pepsi.

I drank a bottle of 50% coke, twice. That still isn’t 100% coke.