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19 Dec 2021, 07:00
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C
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12 Days of Christmas GMAT Competition with Lots of Fun
Solutions A, B, and C are mixed. What is the ratio of alcohol and water in the resultant solution?
(1) A contains 20% alcohol, B contains 20% alcohol, and C contains 80% water.
(2) All solutions contain only water and alcohol.
Solutions A, B, and C are mixed. What is the ratio of alcohol and water in the resultant solution?
(1) A contains 20% alcohol, B contains 20% alcohol, and C contains 80% water.
(2) All solutions contain only water and alcohol.
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General Discussion
19 Dec 2021, 07:10
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Statement 1 :
We dont know if there are other constituents in the mixture. Hence this statement is not sufficient,
Statement 2 :
The only constituents are alcohol and water. However, the concentrations are not present hence not sufficient.
Combining both we get
Solution A - 20% alcohol & 80% water
Solution B - 20% alcohol & 80% water
Solution C - 20% alcohol & 80% water
Because the concentration of the constituents are same, the amount would not matter.
Hence C is sufficient.
IMO - C
We dont know if there are other constituents in the mixture. Hence this statement is not sufficient,
Statement 2 :
The only constituents are alcohol and water. However, the concentrations are not present hence not sufficient.
Combining both we get
Solution A - 20% alcohol & 80% water
Solution B - 20% alcohol & 80% water
Solution C - 20% alcohol & 80% water
Because the concentration of the constituents are same, the amount would not matter.
Hence C is sufficient.
IMO - C
