Chapter R - Review of Basic Concepts - R.2 Real Numbers and Their Properties - R.2 Exercises - Page 22: 119

$ 0.026 $, BAC value will be lower.

Given $W=200\ lb, t=4\ hr, B=3\times20=60\ oz, c=3.8\%$, use the formula we have: $BAC=60\times 3.8\times 0.075 \div 200 - 4\times 0.015 \approx 0.026 $ Increasing the weight $W$ while keep other numbers the same will reduce the BAC value because $W$ is in the denominator of the first positive term.