Salt

Seawater containing 5% salt. How many kg of freshwater necessary to pour into 40 kg of seawater so that the salinity fell to 2%?

Correct answer:

x =  60 kg

Step-by-step explanation:


40•0.05 = 0.02 • (40+x)

0.02x = 1.2

x = 60

Our simple equation calculator calculates it.



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