Quantitative Aptitude - Arithmetic - Mixtures - Bottle 1 contains a mixture of milk
Quantitative Aptitude - Arithmetic - Mixtures
Question
Bottle 1 contains a mixture of milk and water in 7 : 2 ratio and Bottle 2 contains a mixture of milk and water in 9 : 4 ratio. In what ratio of volumes should the liquids in Bottle 1 and Bottle 2 be combined to obtain a mixture of milk and water in 3 : 1 ratio?
A) 27 : 14
B) 27 : 13
C) 27 : 16
D) 27 : 18
Answer
Option (B)
Solution
From CAT 2017 - Quantitative Aptitude - Arithmetic

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Quantitative Aptitude – Arithmetic - Mixtures – A jar contains a mixture of 175 ml
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – A jar contains a mixture of 175 ml
A jar contains a mixture of 175 ml water and 700 ml alcohol. Gopal takes out 10% of the mixture and substitutes it by water of the same amount. The process is repeated once again. The percentage of water in the mixture is now?
a) 20.5
b) 30.3
c) 25.4
d) 35.2
Answer: d) 35.2
Solution:
initial volume of Alcohol = 700, total volume

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Quantitative Aptitude – Arithmetic - Mixtures – There are two drums, each containing a mixture
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – There are two drums, each containing a mixture
There are two drums, each containing a mixture of paints A and B. In drum 1, A and B are in the ratio 18 : 7. The mixtures from drums 1 and 2 are mixed in the ratio 3 : 4 and in this final mixture, A and B are in the ratio 13 : 7. In drum 2, then A and B were in the ratio?
a) 251 : 163
b) 239 : 161
c) 229 : 141
d) 220 :

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Quantitative Aptitude – Arithmetic - Mixtures – A 20% ethanol solution is mixed
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – A 20% ethanol solution is mixed
A 20% ethanol solution is mixed with another ethanol solution, say, S of unknown concentration in the proportion 1:3 by volume. This mixture is then mixed with an equal volume of 20% ethanol solution. If the resultant mixture is a 31.25% ethanol solution, then the unknown concentration of S is?
a) 55%
b) 52%
c) 48%
d) 50%
Answer: d) 50 %
Solu

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Quantitative Aptitude – Arithmetic - Mixtures – The strength of a salt solution is p%
Slot -2 – Quantitative Aptitude – Arithmetic - Mixtures – The strength of a salt solution is p%
The strength of a salt solution is p% if 100 ml of the solution contains p grams of salt. If three salt solutions A, B, C are mixed in the proportion 1 : 2 : 3, then the resulting solution has strength 20%. If instead the proportion is 3 : 2 : 1, then the resulting solution has strength 30%. A fourth solution, D, is produced by mixing B and C in the r

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