ATQ, Let the mixture in each container be 100 litres. Quantity of type A chemical in 1st container = 100 × 30% = 30 litres. Quantity of type B chemical in 2nd container = 100 × 60% = 60 litres. Quantity of type A chemical in 2nd container = 100 – 60 = 40 litres. Quantity of final mixture = 100 + 100 = 200 litres. Quantity of type A chemical in final mixture = 30 + 40 = 70 litres. Percent of Type A chemical in final mixture = 70/200 × 100 = 35%.
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Th...
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