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25 Sep 2017, 00:04
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
51% (02:58) correct
49%
(02:24)
wrong
based on 145
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Garcia purchased two kinds of premium coffee from Harbucks Colorado Coffee Emporium. If premium coffee is only sold in one pound bags and each pound of premium mild coffee costs $2.10 and each pound of premium hearty costs $2.30, how many pounds of premium mild did Garcia buy?
(1) The total value of the coffee Garcia purchased was $17.80
(2) If Garcia had purchased 1 more pound of each type of coffee he would have spent $22.20
(1) The total value of the coffee Garcia purchased was $17.80
(2) If Garcia had purchased 1 more pound of each type of coffee he would have spent $22.20
25 Sep 2017, 03:00
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If the quantity of premium mild coffee is x and the quantity of premium hearty is y
From the question stem, the cost of the coffee is 2.1x + 2.3y
1. The total value of the coffee Garcia purchased was $17.80
2.1x + 2.3y = 17.8
y=5 is the only possibility, where x = 3(Sufficient)
2. If Garcia had purchased 1 more pound of each type of coffee he would have spent $22.20
2.1(x+1) + 2.3(y+1) = 22.20
2.1x + 2.3y = 17.8(on rewriting the equation) (Sufficient)(Option D)
From the question stem, the cost of the coffee is 2.1x + 2.3y
1. The total value of the coffee Garcia purchased was $17.80
2.1x + 2.3y = 17.8
y=5 is the only possibility, where x = 3(Sufficient)
2. If Garcia had purchased 1 more pound of each type of coffee he would have spent $22.20
2.1(x+1) + 2.3(y+1) = 22.20
2.1x + 2.3y = 17.8(on rewriting the equation) (Sufficient)(Option D)
26 Sep 2017, 01:05
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pushpitkc
1) 2.1x + 2.3y = 17.8 .. if y=6 and x=0 >>> 0+ 2.3 x 6 = 13.8 is not equal to 17.8. However, x=3 and y=5 can solely solve the problem>>>> 2.1 x 3 (6.3) + 2.3 x 5 ( 11.5) = 17.8
2) the same thing
