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Mixtures and weighted averages
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4-point ladder

Mixtures and weighted averages, 4-point ladder

●●○4 points, difficulty 2 of 34 pt

Two steps, or one step plus a trap.

3 in a row to finish this ladder.

0/2 solved

KA-0165

about 120s

Four litres of a solution that is 25 percent acid are mixed with six litres of a solution that is 50 percent acid. What percentage of the mixture is acid?