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A vessel of Capacity 2 litre has 25% of Alcohol

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A vessel of Capacity 2 litre has 25% of Alcohol [#permalink]

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New post 12 Oct 2013, 06:41
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A vessel of capacity 2 litre has 25% of alcohol and another vessel of capacity 6 litre had 40% alcohol. The total liquid of 8 litre was poured out in a vessel of capacity 10 litre and thus the rest part of the vessel was filled with the water. What is the new concentration of Mixture?

A) 31%.
B) 71%.
C) 49%.
D) 29%.
E) 51%.
[Reveal] Spoiler: OA

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Re: A vessel of Capacity 2 litre has 25% of Alcohol [#permalink]

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New post 12 Oct 2013, 08:08
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25% of 2 litres = 0.5 litres
40% of 6 litres = 2.4 litres

Therefore, total quantity of alcohol is 2.9 litres.

This mixture is in a 10 litre vessel. Hence, the concentration of alcohol in this 10 litre vessel is 29%
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Re: A vessel of Capacity 2 litre has 25% of Alcohol [#permalink]

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New post 21 May 2017, 13:51
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Re: A vessel of Capacity 2 litre has 25% of Alcohol [#permalink]

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New post 21 May 2017, 14:16
Gnpth wrote:
A vessel of capacity 2 litre has 25% of alcohol and another vessel of capacity 6 litre had 40% alcohol. The total liquid of 8 litre was poured out in a vessel of capacity 10 litre and thus the rest part of the vessel was filled with the water. What is the new concentration of Mixture?

A) 31%.
B) 71%.
C) 49%.
D) 29%.
E) 51%.


let 1-x=new concentration of alcohol
.75*2+.6*6+2=x*10
x=.71
1-x=.29=29%
D
Re: A vessel of Capacity 2 litre has 25% of Alcohol   [#permalink] 21 May 2017, 14:16
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