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Re: Which of the positive numbers x or y is greater?
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03 Jul 2016, 10:40
x and y are positive number and we need to find which is greater
(1) y = 2x y > x since both are positive Sufficient (2) 2x + 5y = 12 x and y can take different values . Not sufficient Answer A
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Re: Which of the positive numbers x or y is greater?
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04 Jul 2016, 10:33
A is sufficient.
Stmt 1: is valid for both integers and fractions and it can be deduced that y>x. Stmt 2: not sufficient to prove if x>y or y>x. Hence in sufficient.
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Re: Which of the positive numbers x or y is greater?
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08 Sep 2018, 00:03
In stat 1 whatever positive value we take y>x hence sufficient In stat 2 y=2 and x=1 satisfies the equation and x=3.5 and y=1 also satisfies, so we cannot decide which of x and y is greater hence not sufficient. A should be the correct choice.
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Re: Which of the positive numbers x or y is greater?
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09 Sep 2018, 02:10
The question would be a little bit trickier if statement 2 would change.
Which of the positive numbers x or y is greater?
(1) y = 2x (2) 2x + 6y = 12
Statement 2 is still insufficient, but some people will assume that x=1 and y=1, since 12=2*6. But since the question does not state that x and y are integers; S(2) is still insufficient.
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60% (01:18) correct 
