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x and y are two numbers

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Carcass
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x and y are two numbers [#permalink] New post   Updated on: 31 Aug 2018, 03:21
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68% (00:46) correct 31% (00:34) wrong based on 154 sessions

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x and y are two numbers

Quantity A
Quantity B
The product of x and y
The product of 80% of x and 125% of y


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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C

Originally posted by Carcass on 24 Apr 2018, 01:57.
Last edited by Carcass on 31 Aug 2018, 03:21, edited 1 time in total.
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mohan514
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Re: x and y are two numbers [#permalink] New post   24 Apr 2018, 03:05
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I think the answer option given is wrong. It should be D. As nothing is mentioned about propeties of these numbers, they both can be same and =0.

Hence D
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Re: x and y are two numbers [#permalink] New post   24 Apr 2018, 09:08
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If you think in a more abstract way:

A)\(x*y\)

B) \(\frac{4}{5}x * \frac{5}{4}y = x*y\)

So the answer is C.

However, the question is flawed: if you pick numbers the two quantities are NOT equal. So the answer is D.

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IshanGre
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Re: x and y are two numbers [#permalink] New post   31 Aug 2018, 00:47
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Carcass wrote:
If you think in a more abstract way:

A)\(x*y\)

B) \(\frac{4}{5}x * \frac{5}{4}y = x*y\)

So the answer is C.

However, the question is flawed: if you pick numbers the two quantities are NOT equal. So the answer is D.

Regards



but spoiler still says C..it shoudl be D right.
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Re: x and y are two numbers [#permalink] New post   31 Aug 2018, 03:21
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Done and thank you so much.

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Arc29
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Re: x and y are two numbers [#permalink] New post   31 Aug 2018, 21:23
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Is the answer D as x,y can take any value even zero?
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Re: x and y are two numbers [#permalink] New post   01 Sep 2018, 10:34
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Yes, confirmed.

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Re: x and y are two numbers [#permalink] New post   01 Sep 2018, 23:59
No matter what x and y are, xy = xy is always true. Why would C be not correct?
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Re: x and y are two numbers [#permalink] New post   02 Sep 2018, 02:08
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Simon,

see my explanation above https://gre.myprepclub.com/forum/x-and-y-a ... tml#p18805
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Re: x and y are two numbers [#permalink] New post   02 Sep 2018, 02:25
Carcass wrote:
Simon,

see my explanation above https://gre.myprepclub.com/forum/x-and-y-a ... tml#p18805


Sorry still don't get you. What numbers you talking about? Numbers for x and y?
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Re: x and y are two numbers [#permalink] New post   02 Sep 2018, 02:40
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Guys, I think we have overlooked the question.

The OA is correct and it is C.

If we pick numbers and these are : -1/2, -1, 0, 1, 1/2

The result of any combination of these is always C. Whenever the stem does not mention anything about what numbers we have to deal with, the consequence is that not always the time the answer is D.

Thank you for the discussion
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Re: x and y are two numbers [#permalink] New post   02 Sep 2018, 02:44
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Carcass wrote:
Guys, I think we have overlooked the question.

The OA is correct and it is C.

If we pick numbers and these are : -1/2, -1, 0, 1, 1/2

The result of any combination of these is always C. Whenever the stem does not mention anything about what numbers we have to deal with, the consequence is that not always the time the answer is D.

Thank you for the discussion


Thank you for clarifying. Been scratching my head what's wrong, what's wrong..
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akashjain0802
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Re: x and y are two numbers [#permalink] New post   02 Sep 2018, 02:45
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A) x*y

B) (80% of x ) * (125% of y) => [(80/100)*x] * [(125/100)*y]. Simplifying this expression gives x*y which is same as A.

Hence both quantities are same. Answer choice C
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Re: x and y are two numbers [#permalink] New post   06 Feb 2021, 23:25
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Guys it doesn't matter what the values of X and Y are!

Col. A: XY
Col. B: 0.8X x 1.25Y = XY

Whatever, the values, they will always be equal.
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Re: x and y are two numbers [#permalink] New post   21 Feb 2021, 09:29
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Qnt A = x * y
Qnt B = 0.8 x * 1.25 y = x * y

Answer is C
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Re: x and y are two numbers [#permalink]
21 Feb 2021, 09:29
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