Problema Solution

Determine the number of liters of a 25% solution that must be mixed with a 50% solution

to obtain 5 liters of a 30% solution

Answer provided by our tutors

0.25x + 0.5 = 5* 0.3 

0.25x = 1.5 - 0.5 

0.25x = 1 

x = 4 litres.

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