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If \(a\) and \(b\) are consecutive positive integers, and \(ab=30x,\) is \(x\) a non-integer?
(1) \(a^2\) is divisible by 21.
(2) 35 is a factor of \(b^2.\)
[spoiler]OA=C[/spoiler]
Source: Manhattan GMAT
(1) \(a^2\) is divisible by 21.
(2) 35 is a factor of \(b^2.\)
[spoiler]OA=C[/spoiler]
Source: Manhattan GMAT
