What is my ABV?

[Elmer]

I know there is a formula but I can not find it, not to mention I am lousy in math.
I had 1 gallon of 7.5% ABV stout
Added 2 oz of 40% ABV whiskey


What is the ABV?
Can imagine it goes up that much!

 

[Runningwolf]

I come up with 8% abv using the pearson square

 

[jswordy]

Q: What is my ABV?

A: I don't know. How much do you weigh and how many ounces have you had?

 

[benaway]

Q: What is my ABV?

A: I don't know. How much do you weigh and how many ounces have you had?

I have tried to copy that gfi on your signature, but the damn thing keeps changing so fast it confuses my copy thingy on my computer

 

[jswordy]

I have tried to copy that gfi on your signature, but the damn thing keeps changing so fast it confuses my copy thingy on my computer

Copy Thingy - Hmmmm, sounds too technical for me!