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A solution of 9% acid is …

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A solution of 9% acid is to be diluted by adding 3% acid solution to it. The resulting mixture is to be more than 5% but less than 7% acid. If there is 460 litres of the 9% solution, how many litres of 3% solution will have to be added?
  • 1 answers

Gaurav Seth 4 years, 6 months ago

Let x Lot 3% solution be added to 460 L of 9% solution of acid.
Then, total quantity of mixture = (460 + x) L

Hence, the number of litres of the 3% solution of acid must be more than 230 and less than 920.  

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