A father and his son are celebrating the father's 75th birthday. Drink for drink, who will most likely have a higher BAC?

The one who will most likely have a higher BAC is the father because a person who is older will most likely have the higher BAC, as the father is already seventy five and much older to his son, he will be therefore have a higher BAC compared to his son.

I believe the answer is: The father

There are several factors that could influence BAC level in your body: The amount of alcohol consumed, gender, body size, and metabolism level. Since both the son and father has similar amount of drink, the father would most likely has higher BAC since our metabolism level would slowed down as we got older.