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#1 2013-02-26 05:26:15
- johnphoenix
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Mixture
I have a problem , please help me
A mixture is containing milk and water in the ratio 3:1 . What fraction of the mixture must be replaced by water so that the resultant mixture contains 50% water ?
Please try to explain the steps as well cos I am math at Maths . 
#2 2013-02-26 05:31:15
- bobbym
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Re: Mixture
Hi johnphoenix;
If 1 / 3 of the milk was replaced by water then you would have a 50:50 mixture. 1 / 3 of the milk represents 1 / 4 of the mixture, so you must replace 1 / 4 of the mixture.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#4 2013-02-26 05:43:43
- bobbym
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Re: Mixture
Supposing the mixture was divided into 4 pieces. 3 of those pieces are milk, yes?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#6 2013-02-26 05:48:30
- bobbym
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Re: Mixture
That is right. Take 1 part of the milk ( there are 3 ) and replace it with water. You now have 2 parts milk and 2 parts water. It is 50:50 now.
But 1 part of the milk is only 1 / 4 of the 4 parts of the mixture. So we need to replace 1 part of the mixture which is 1 / 4 of the mixture.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#7 2013-02-26 05:51:24
- johnphoenix
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Re: Mixture
yeah mate , I have understood that but the answer given is 1/3 
#8 2013-02-26 05:55:06
- bobbym
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Re: Mixture
Did you copy the question exactly?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#10 2013-02-26 06:00:21
- bobbym
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Re: Mixture
Okay, I thought you just needed some fraction help but you are asking for a mixture problem. I will try and solve that.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
Sorry mate#12 2013-02-26 06:05:53
- johnphoenix
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Re: Mixture
Got It mate Alligation use allegation 1/3 is correct answer
And ques is exactly quoted
#13 2013-02-26 06:07:21
- bobbym
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Re: Mixture
What is Allegation?
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#15 2013-02-26 06:14:50
- bobbym
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Re: Mixture
I agree it is 1 /3 by calculation.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#17 2013-02-26 06:34:17
- bobbym
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Re: Mixture
Hi;
I soon as I get it, I will post it.
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.
#19 2013-02-26 06:45:26
- bobbym
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Re: Mixture
Ley m be the percentage of milk, w be the percentage of water, n is the percentage we must remove.
m = 75
w = 25
n = 1 / 3
The whole 3 equations boil down to this:
Last edited by bobbym (2013-02-26 06:51:57)
In mathematics, you don't understand things. You just get used to them.
90% of mathematicians do not understand 90% of currently published mathematics.
I am willing to wager that over 75% of the new words that appeared were nothing more than spelling errors that caught on.