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-5x+12y=18

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-5x+12y=18 [#permalink] New post   29 Apr 2021, 10:48
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Question Stats:

77% (01:52) correct 22% (02:17) wrong based on 31 sessions

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\(-5x+12y=18\)

\(2x-6y=-11\)


Quantity A
Quantity B
The value of the product of x and y
The value of the sum of x and 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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Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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tapas3016
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-5x+12y=18 [#permalink] New post   30 Apr 2021, 05:57
By multiplying 2nd equation by 2.

\(4x-12y = -22\)

By adding this with 1st equation, we get

\(-x = -4 \)
\(x = 4\)

Putting the value of x in 1st equation

\(y = 4\)

\(x*y = 16\)
\(x+y = 8 \)

Hence, A
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Re: -5x+12y=18 [#permalink] New post   11 Mar 2022, 05:11
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tapas3016 wrote:
By multiplying 2nd equation by 2.

\(4x-12y = -22\)

By adding this with 1st equation, we get

\(-x = -4 \)
\(x = 4\)

Putting the value of x in 1st equation

\(y = 4\)

\(x*y = 16\)
\(x+y = 8 \)

Hence, A




How is Y= 4?

12Y - 5X = 18

12y -20 = 18

12Y = 38

Y= 38/12 (it's not 48 by 4)

thats 3.166

4 + 3.166 = 7.166

4*3.666 > 12

A>B
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Re: -5x+12y=18 [#permalink]
11 Mar 2022, 05:11
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