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GRE Practice Question-If |1 - x| = 6 and |2y - 6| = 10
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30 Apr 2015, 14:44
30 Apr 2015, 14:44
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Question Stats:
61% (01:14) correct
38% (01:05) wrong based on 81 sessions
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If |1 - x| = 6 and |2y - 6| = 10, which of the following tcould be the value of xy?
Indicate ALL such values.
A) -40
B) -14
C) -10
D) 56
?????? Solve each absolute value
Indicate ALL such values.
A) -40
B) -14
C) -10
D) 56
?????? Solve each absolute value
Re: GRE Practice Question-If |1 - x| = 6 and |2y - 6| = 10
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08 Dec 2015, 09:16
08 Dec 2015, 09:16
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Answer: A,B,D
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Joined: 10 Apr 2015
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Re: GRE Practice Question-If |1 - x| = 6 and |2y - 6| = 10
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09 Jun 2016, 13:41
09 Jun 2016, 13:41
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Osira wrote:
If |1 - x| = 6 and |2y - 6| = 10, which of the following tcould be the value of xy?
Indicate ALL such values.
A) -40
B) -14
C) -10
D) 56
Indicate ALL such values.
A) -40
B) -14
C) -10
D) 56
Given: |1 - x| = 6
So, EITHER 1 - x = 6 OR 1 - x = -6
If 1 - x = 6, then x = -5
If 1 - x = -6, then x = 7
Given: |2y - 6| = 10
So, EITHER 2y - 6 = 10 OR 2y - 6 = -10
If 2y - 6 = 10, then y = 8
If 2y - 6 = -10, then y = -2
So, let's look at all possible values of xy
xy = (-5)(8) = -40
xy = (-5)(-2) = 10
xy = (7)(8) = 56
xy = (7)(-2) = -14
Answer: A, B, D
