Answer:
24.9 / 93 by weight or 1 gal /31 lb = 1/31 gal/lb
Step-by-step explanation:
Water weighs approx 8.3 pounds per gallon
3 gal * 8.3 pound/gal = 24.9 pounds
water to cement then becomes
24.9 / 93 ( or 83/310)
Or maybe you just want 3 gal / 93 lb
= 1 gal /31 lb