Problem Solving (PS) | Re: A company produces a cleaning solution that has 60% concentration of C

30% of 200 = 60L of K
40% of 150 = 60L of K

120L/350L

(120 + x)/(350 + x) = 60% = 3/5

600 + 5x = 1050 + 3x
2x = 450
x = 225

225L of K to be added.

Option D.

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