Re: The price of a vanilla candy is $x less than twice the cost of a choco
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17 Apr 2023, 07:24
A bit laborious, but it gives the answer.
VC = Vanilla Candy
CC = Chocolate Candy
The price of a vanilla candy is $x less than twice the cost of a chocolate candy.
VC = 2CC - X --- (1)
Their combined cost is less than the cost of 3 vanilla candies.
VC + CC < 3VC --- (2)
substituting (1) in (2)
2CC - X + CC < 3VC
3CC - X < 3VC
3CC - 3VC < X
3CC - 3(2CC - X) < X
3CC - 6CC + 3X < X
-3CC + 3X < X
-3CC < X - 3X
-3CC < -2X
multiplying throughout by - 1
3CC > 2X
Since Quantity B is (8/3)X, we divide throughout by 3/4 to get
3CC/(3/4) > 2X/(3/4)
4CC > 8/3X
Quantity A is greater than Quantity B
Choice A