The term
thrice is archaic and will not appear on the GMAT.
The following reflects the intended meaning:
shivanshchauhan94 wrote:A vessel is full of milk. 1/3 of the solution is taken out and replaced with water. This process is performed a total of 3 times. At the end of it, if 16 liters of milk remains, how much water will be present in the vessel?
A) 39 ltr
B)42 ltr
C)17 ltr
D)38 ltr
E) 40 ltr
Let m = the original volume of milk,
Each time 1/3 of the volume is removed, 2/3 of the milk is left behind.
Since performing this process 3 times leaves behind 16 liters, we get:
(2/3)(2/3)(2/3)m = 16
m = (16*27)/8 = 54
Amount of water at the end of the 3 processes = (original volume of milk) - (remaining milk after 3 processes) = 54 - 16 = 38 liters.
The correct answer is
D.
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