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4(1/2x+2y) or ( 2x+8y)
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18 May 2023, 10:55
18 May 2023, 10:55
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Question Stats:
63% (01:06) correct
36% (00:52) wrong based on 41 sessions
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Quantity A |
Quantity B |
\(4(\frac{1}{2x}+2y)\) |
\(( 2x+8y)\) |
A Quantity A is greater.
B Quantity B is greater.
C The two quantities are equal.
D The relationship cannot be determined from the information given.
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GRE 1: Q161 V147
Re: 4(1/2x+2y) or ( 2x+8y)
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18 May 2023, 23:42
18 May 2023, 23:42
2
Here,
A
4(1/2x + 2y)
=4/2x + 8y
= 2/x + 8y
B
(2x+8y)
8y is common in both options. Since we don't have the value of x, we have to assume the value of x. If x is -2, option A is -x+8y and option B is -4x+8y. The answer is B. Again, if x is 2, option A is x+8y and option B is 4x+8y. Option B is the answer. So, option B is the answer.
A
4(1/2x + 2y)
=4/2x + 8y
= 2/x + 8y
B
(2x+8y)
8y is common in both options. Since we don't have the value of x, we have to assume the value of x. If x is -2, option A is -x+8y and option B is -4x+8y. The answer is B. Again, if x is 2, option A is x+8y and option B is 4x+8y. Option B is the answer. So, option B is the answer.
Re: 4(1/2x+2y) or ( 2x+8y)
[#permalink]
16 Jun 2023, 23:19
16 Jun 2023, 23:19
4
For Quantity A, we'd get
4(1/2x + 2y)
= 2/x + 8y
and Quantity B,
= 2x+8y
Now ignoring 8y since it would be the same value on both ends and
plugging x = 1,
we get A --> 2/x = 2 and B --> 2x = 2*1 = 2 --> so here quantities are equal
if x=2,
we get A --> 2/x = 2/2 = 1 and B --> 2x = 2*2 = 4 --> here B is greater
So, it should be D -The relationship cannot be determined from the information given.
4(1/2x + 2y)
= 2/x + 8y
and Quantity B,
= 2x+8y
Now ignoring 8y since it would be the same value on both ends and
plugging x = 1,
we get A --> 2/x = 2 and B --> 2x = 2*1 = 2 --> so here quantities are equal
if x=2,
we get A --> 2/x = 2/2 = 1 and B --> 2x = 2*2 = 4 --> here B is greater
So, it should be D -The relationship cannot be determined from the information given.
