# Concentration

How 0.5 liters of 8% vinegar diluted to a concentration of 20 hundredths % of vinegar? How many liters of water must be pour?

Result

x =  19.5 l

#### Solution:

0.5 * 8% = 20/100 % * ( x + 0.5)

0.2x = 3.9

x = 39/2 = 19.5

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