On a certain day, orangeade was made by mixing a certain amount of of orange juice with an equal amount of water. On the next day, orangeade was made by mixing the same amount of orange juice with twice the amount of water. On both days, all the orangeade that was made was sold. If the revenue from selling the orangeade was the same for both days and if the orangeade was sold at $0.60 per glass on the first day, what was the price per glass on the second day?
A)$0.15 B)$0.20 C)$0.30 D)$0.40 E)$0.45
Let each glass = 1 unit.
First day:
Let water = 1 unit and juice = 1 unit.
Glasses = water + juice = 1+1 = 2.
Since each glass earns 60 cents, revenue = 2*60 = 120.
Second day:
Revenue = 120 (same as on the first day).
Since twice as much water is used, water = 2 units.
Juice = 1 unit (same as on the first day.)
Glasses = water + juice = 2+1 = 3.
Price per glass = revenue/glasses = 120/3 = 40.
The correct answer is
D.
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