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a = 2b = 4c and a, b, and c are integers.
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23 Jun 2018, 12:19
23 Jun 2018, 12:19
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Expert Reply
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Question Stats:
59% (00:53) correct
40% (00:52) wrong based on 134 sessions
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a = 2b = 4c and a, b, and c are integers.
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.
Quantity A |
Quantity B |
\(a + b\) |
\(a + c\) |
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.
Re: a = 2b = 4c and a, b, and c are integers.
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23 Jun 2018, 12:26
23 Jun 2018, 12:26
2
sandy wrote:
a = 2b = 4c and a, b, and c are integers.
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.
Quantity A |
Quantity B |
\(a + b\) |
\(a + c\) |
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.
This post is repeated "https://gre.myprepclub.com/forum/a-2b-4c-and-a-b-and-c-are-integers-9343.html" . I have deleted the old post to avoid repetition
Here let a=4, b= 2 and c= 1
or it can be a= -4 , b= -2 and c= -1
and both of them still satisfy the given statement
Now if we consider positive integer then statement A is greater
but if we consider negative integer then statement B is greater.
Hence option D
Re: a = 2b = 4c and a, b, and c are integers.
[#permalink]
17 Jul 2018, 12:09
17 Jul 2018, 12:09
Expert Reply
Explanation
Since a is common to both quantities, it can be ignored. The comparison is really between b and c.
Because 2b = 4c, it is true that b = 2c, so the comparison is really between 2c and c. Watch out for negatives. If the variables are positive, Quantity A is greater, but if the variables are negative, Quantity B is greater.
Since a is common to both quantities, it can be ignored. The comparison is really between b and c.
Because 2b = 4c, it is true that b = 2c, so the comparison is really between 2c and c. Watch out for negatives. If the variables are positive, Quantity A is greater, but if the variables are negative, Quantity B is greater.
