Solution: Let the amount of saline in the first solution be $ 0.20 \times 3 = 0.6 $ liters. The second solution contributes $ 0.50x $ liters of saline. The total volume is $ 3 + x $ liters, and the total saline is $ 0.35(3 + x) $. Setting up the equation:

Thu, 30 Apr 2026 21:19:49 +0000

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