SOLUTION: A 50% solution is added to a pure solution to get 40g of 60% solution/ How much pure solution is used.

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Question 719832: A 50% solution is added to a pure solution to get 40g of 60% solution/ How much pure solution is used.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A 50% solution is added to a pure solution to get 40g of 60% solution/ How much pure solution is used.
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Equation:
active + active = active
1*x + 0.50(40-x) = 0.60*40
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100x + 50*40-50x = 60*40
50x = 10*40
x = 8g (amt. of pure solution needed)
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Cheers,
Stan H.