Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

## #1 2013-02-26 05:26:15

johnphoenix
Member

Offline

### Mixture

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

Online

### 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.

## #3 2013-02-26 05:39:30

johnphoenix
Member

Offline

### Re: Mixture

how is it 1/3 of milk ? Explain please, I am a noob

## #4 2013-02-26 05:43:43

bobbym

Online

### 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.

## #5 2013-02-26 05:45:32

johnphoenix
Member

Offline

### Re: Mixture

yeah so milk is 3/4 part of it and water is 1/4 part

## #6 2013-02-26 05:48:30

bobbym

Online

### 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
Member

Offline

### Re: Mixture

yeah mate , I have understood that but the answer given is 1/3

## #8 2013-02-26 05:55:06

bobbym

Online

### 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.

johnphoenix
Member

Offline

yes mate ;

## #10 2013-02-26 06:00:21

bobbym

Online

### 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.

## #11 2013-02-26 06:03:10

johnphoenix
Member

Offline

### Re: Mixture

I guess they want fraction of milk  Sorry mate

## #12 2013-02-26 06:05:53

johnphoenix
Member

Offline

### 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

Online

### 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.

## #14 2013-02-26 06:12:24

johnphoenix
Member

Offline

### Re: Mixture

Alligation is a method of solving mixture ques.

## #15 2013-02-26 06:14:50

bobbym

Online

### 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.

johnphoenix
Member

Offline

## #17 2013-02-26 06:34:17

bobbym

Online

### 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.

johnphoenix
Member

Offline

ok

## #19 2013-02-26 06:45:26

bobbym

Online

### 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.