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In a mixture of 45 litres the ratio of milk to water

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In a mixture of 45 litres the ratio of milk to water [#permalink] New post 21 Feb 2013, 07:00
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80% (01:54) correct 20% (00:46) wrong based on 46 sessions
In a mixture of 45 litres the ratio of milk to water is 4:1. Additional 15 litres of water is added to the mixture. Find the ratio of milk to water in the resulting mixture.

A. 2/1
B. 4/1
C. 2/3
D. 3/4
E. 3/2
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Re: In a mixture of 45 litres the ratio of milk to water [#permalink] New post 21 Feb 2013, 07:05
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antoxavier wrote:
In a mixture of 45 litres the ratio of milk to water is 4:1. Additional 15 litres of water is added to the mixture. Find the ratio of milk to water in the resulting mixture.

A. 2/1
B. 4/1
C. 2/3
D. 3/4
E. 3/2


Given that Milk/Water=4x/x and 4x+x=45 --> x=9.

Thus Milk=4x=36 liters and Water=x=9 liters.

New ratio = 36/(9+15) = 36/24 = 3/2.

Answer: E.
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Re: In a mixture of 45 litres the ratio of milk to water   [#permalink] 21 Feb 2013, 07:05
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