Two wines are available for blending: one tank of 2000 L has a TA of 8.6 g/L another tank of 4000 L has a TA of 6.2 g/L.
How much volume of the low acid wine do you need to mix with all of the 8.6 g/L TA wine to have the resulting blend equivalent to 7.2 g/L? Show your calculations