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Re: M15-26 [#permalink]
I think this is a high-quality question and I agree with explanation. I used a different approach: Solicit your opinion on it.

First solution has 0.8 lt Acid.
We also know the concentration of acid is twice that of the second solution.
So, if sample 1 had same concentration then sample1 would contain 0.4 lt acid.
Now we got a ratio between volumes between the two different solutions.
0.4:0.6 which is 2:3
We can say there was 4 liter of solution 1 in 10 liter of mixed solution.

Let me know your opinion on it.
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Re: M15-26 [#permalink]
Need to practice these kind of questions. Is there any thread for these mixture questions of various level(500-700+)?
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Re: M15-26 [#permalink]
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kri1311 wrote:
Need to practice these kind of questions. Is there any thread for these mixture questions of various level(500-700+)?


Check our questions bank: https://gmatclub.com/forum/search.php?view=search_tags

18. Mixture Problems



For more check Ultimate GMAT Quantitative Megathread



Hope it helps.
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Re: M15-26 [#permalink]
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I have edited the question and the solution by adding more details to enhance its clarity. I hope it is now easier to understand.
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Re: M15-26 [#permalink]
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: M15-26 [#permalink]
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