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A chemical agent is kept in bottles having 50 percent concentration

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A chemical agent is kept in bottles having 50 percent concentration [#permalink]

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A chemical agent is kept in bottles having 50 percent concentration of a particular chemical. A part of the chemical agent was kept aside and equal quantity of water was added to the remaining chemical agent. The chemical now forms what percentage concentration in the final mixture?

(1) Each bottle of the chemical agent contains 60 ml of the mixture.
(2) 60 percent part of the chemical agent in the bottle was kept aside and equal quantity of water was added to the remaining chemical agent.
[Reveal] Spoiler: OA

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A chemical agent is kept in bottles having 50 percent concentration [#permalink]

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New post 03 Jul 2017, 04:24
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The chemical agent(kept in bottles) had 50% concentration.
A part of this solution was kept aside(had to be diluted with water)
Adding the chemical agent(in bottles) with the chemical agent(once diluted) will give a mixture.
We need to find out how much percentage concentration is present in that final mixture.

(1) Each bottle of the chemical agent contains 60 ml of the mixture.
Knowing how much chemical agent, without the number of bottles present and the
quantity of the agent kept aside, we can't give the final concentration(Not sufficient)

(2) 60 percent part of the chemical agent in the bottle was kept aside
and equal quantity of water was added to the remaining chemical agent.
It has been given that the quantity kept aside was 60% of the total chemical solution
and was diluted in the same proportion, we can clearly tell that the chemical is 50% of the final mixture(Sufficient) (Option B)
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Re: A chemical agent is kept in bottles having 50 percent concentration [#permalink]

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New post 10 Dec 2017, 01:07
Not totally clear about the question and solution. Can any one please show me detail solution on this?
Re: A chemical agent is kept in bottles having 50 percent concentration   [#permalink] 10 Dec 2017, 01:07
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