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x + 4y = 6
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20 Sep 2017, 10:47
20 Sep 2017, 10:47
Expert Reply
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Question Stats:
98% (00:21) correct
1% (00:17) wrong based on 92 sessions
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x + 4y = 6 and x=2y
Quantity A |
Quantity B |
x |
y |
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.
Re: x + 4y = 6
[#permalink]
22 Sep 2017, 22:12
22 Sep 2017, 22:12
2
Carcass wrote:
x + 4y = 6 and x=2y
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.
Quantity A |
Quantity B |
x |
y |
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.
Given
x + 4y = 6
and x=2y now substituting the value of x in first equation we get -
2y + 4y = 6
or 6y = 6
or y =1
Therefore x =2 (from equation 2)
So A>B
Re: x + 4y = 6
[#permalink]
24 Sep 2017, 14:27
24 Sep 2017, 14:27
1
x + 4y = 6----1)
& x - 2y = 0----2)
---------------------
Adding equation 1) and 2)
we get, 6y = 6 which implies y = 1
substituting value of y in equation 2) , we get x = 2
hence x > y
So option A
& x - 2y = 0----2)
---------------------
Adding equation 1) and 2)
we get, 6y = 6 which implies y = 1
substituting value of y in equation 2) , we get x = 2
hence x > y
So option A
