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Q.

A solution is obtained by mixing 200 g of 30% and 300 g of 20% solution by weight. What is the percentage of solute in the final solution?

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a

50%

b

28%

c

64%

d

24%

answer is D.

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Detailed Solution

Solute in 200 g of 30% solution = 60g solute in 300  g of 20% solution = 60g

Total grams of solute = 120 g

Total grams of solution = 200 + 300 =500g

% of solute in the final solution =120500X100=24%

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