7L of an acid solution was mixed with 3L of a 15% acid solution to make a 29% acid solution. Find the percent concentration of the first solution.

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DMM asked Jun 11, 2022

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7L of an acid solution was mixed with 3L of a 15% acid solution to make a 29% acid solution. Find the percent concentration of the first solution.

Mathematics
high-school

DMM asked Jun 11, 2022

by DMM

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Answer:

hypotenuse Pythagoras property

Rishabh Sahrawat answered Jun 12, 2022

by Rishabh Sahrawat

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13 votes

Let 7L acid solution concentration=x%
According to question

(7x+3*15)/10=29

7x+45=290

x=35%

Simeon Nakov answered Jun 16, 2022

by Simeon Nakov

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