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A certain tank is filled to one quarter of its capacity with a mixture consisting of water and sodium chloride. The proportion of sodium chloride in the tank is 40% by volume and the capacity of the tank is 24 gallons. If the water evaporates from the tank at the rate of 0.5 gallons per hour, and the amount of sodium chloride stays the same, what will be the concentration of water in the mixture in 2 hours?
A. 43%
B. 50%
C. 52%
D. 54%
E. 56%
OA C
Source: Manhattan Prep
A. 43%
B. 50%
C. 52%
D. 54%
E. 56%
OA C
Source: Manhattan Prep
