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How many liters of 10% salt solution must be added to 5 liters of 25% salt solution to obtain a 15% salt solution?

How many liters of 10% salt solution must be added to 5 liters of 25% salt solution to obtain a 15% salt solution?
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5 votes
how many liters of 10% salt solution must be added to 5 liters of 25% salt solution to obtain a 15% salt solution?

asked
User Sindy
by
8.0k points

1 Answer

3 votes

Answer: 10 liters

Explanation:

Let the number of liters of 10% solution be
x.


0.10x+5(0.25)=0.15(x+5)\\\\0.10x+1.25=0.15x+0.75\\\\1.25=0.05x+0.75\\\\0.05x=0.50\\\\x=10

answered
User Jim Paris
by
7.8k points
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