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1.7 servings. One serving of 80 proof is 100 grams. There are 170.097 grams in six ounces of vodka. 1 1/2 times four is six ounces.


Hello!

The answer is 1,6 alcohol servings.

Why?

First, we need to know that  80-proof vodka contains 40% of alcohol, and a standard serving (at least in the U.S) is 1.5 oz (ounces).

Calculations

First, we need to know how many ounces we have in 4 Jell-O shots.

[tex]1.5 oz * 4 = 6 oz[/tex]

So we have, 6 oz in 4 Jell-O shots

We know that no matter how many ounces of 80-proof vodka we have, there is always a 40% of alcohol. Knowing that we can calculate how much alcohol is in 4 Jell-O shots or 6 oz

[tex]6 oz * 0,4 = 2,4 oz[/tex]

There are 2,4 oz of alcohol in 4 Jell-O shots  (6 oz)

To know how many alcohol servings are in 4 Jell-O servings (6 oz), we need to divide 2,4 oz by 1,5 oz (remember that a standard serving is 1,5 oz)

So

[tex]\frac{2,4 oz}{1,5 oz} = 1,6 servings[/tex]

Finally, calculating, we know that we have 1,6 servings of alcohol in 4 Jell-O shots.

Have a nice day!