Value

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Value

by smclean23 » Fri Jul 18, 2008 5:15 pm
If x and y are positive, what’s the value of x ?
(1) x = 3.927y
(2) y = 2.279

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Re: Value

by Stuart@KaplanGMAT » Fri Jul 18, 2008 8:54 pm
smclean23 wrote:If x and y are positive, what’s the value of x ?
(1) x = 3.927y
(2) y = 2.279
(1) no clue what y is, insufficient.

(2) no info about x, insufficient.

Together: we can substitute in the value for y from (2) into the equation from (1) and get a definite value for x: sufficient, choose (c).
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