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X,Y, and Z are negative integers [#permalink]
27 Dec 2016, 08:26
Question Stats:
72% (00:29) correct
27% (00:47) wrong based on 66 sessions
X,Y, and Z are negative integers.
Quantity A 
Quantity B 
The product of x,y, and z 
The sum of x,y, and z 
A)The quantity in Column A is greater. B)The quantity in Column B is greater. C)The two quantities are equal. D)The relationship cannot be determined from the information given.
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Re: X,Y, and Z are negative integers [#permalink]
27 Dec 2016, 10:08
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Carcass wrote: X,Y, and Z are negative integers.
Quantity A 
Quantity B 
The product of x,y, and z 
The sum of x,y, and z 
We aren't told anything about x, y and z other than the fact that they're all negative integers. So, let's test some values of x, y, and zTry x = 1, y = 1 and z = 1 We get: Quantity A: (1)(1)(1) = 1 Quantity B: (1) + (1) + (1) = 3 In this case, QUANTITY A is greaterNow try x = 1, y = 2 and z = 3 We get: Quantity A: (1)(2)(3) = 6 Quantity B: (1) + (2) + (3) = 6 In this case, QUANTITY A and QUANTITY B are equalAnswer: D
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Re: X,Y, and Z are negative integers [#permalink]
01 Dec 2019, 02:03
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In these kinds of question. The approach that can be handy is as below.
Try to substitute some values, which sometimes makes A as large and sometimes B as large.
scenario 1 : x= 0.5, y= 1, z= 2 A = 1, B = 3.5 A is greater
Scenario 2 : x = 2, y= 2, z = 2 A = 8, B= 6 B is greater
We do not have definite answer whether A is greater or B is greater. Hence, D is the Answer.



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Re: X,Y, and Z are negative integers [#permalink]
01 Dec 2019, 20:32
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This can be quickly solved by giving values to the variables. SO plugin. Case 1: x= 1, y= 1, z= 1 A: 1 B: 3 A>B
Case 2: x= 2, y= 2, z= 2 A: 8 B: 6 A<B
So 'D' choice can be chosen as we can't come to conclusion with the given information.




Re: X,Y, and Z are negative integers
[#permalink]
01 Dec 2019, 20:32





