How many gallons of a 12% salt solution should a biologist add to 5 gallons of a 15% salt solution to get a 14% solution?
1 answer:
The volume of the 12% salt solution to be added is; 2.5 gallons.
<h3>Ratio and Proportion of Volume</h3>
Let the volume of 12% required be x and the new volume of the mixture be (x+5).
On this note, it follows that;
Hence, -2x = -5
Divide both side by -2;
x = 2.5 gallons.
Read more on ratios and Proportions;
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