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Math/Chemistry Question- Brand A has density of 1/2 g/ml @ $5.00 a quart...?
and Brand B has a density of .96 g/ml and costs $4.oo a quart- which has the better value. ** just $/quart won't solve this since the 2 brands have different densities.
Please explain how you come up with the answer.
Brand A is 1.2 g/ml not 1/2...... Sorry
1 Answer
- skipperLv 71 decade agoFavorite Answer
They both cost the same per unit weight while Brand B is a better value if you are buying by unit volume volume.
Did you waste your time by determining how many mL are in a quart and then computing the cost per mL?
Since both densities are in mL, assume you have X mL of each, and a quart = X mL.
1.2 (X) gms of A = $5.00 and A costs $5.00 / (1.2X) per gm or $4.166.. / X per gram
0.96 (X) gms of B = $4.00 and B costs $4.00 / (0.96X) per gm or $4.166.. / X per gram
