If \(a = 2.4d7,\) and \(d\) represents a digit from \(0\) to \(9,\) is \(d\) greater than \(4 ?\)

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If \(a = 2.4d7,\) and \(d\) represents a digit from \(0\) to \(9,\) is \(d\) greater than \(4 ?\)

(1) If \(a\) were rounded to the nearest hundredth, the new number would be greater than \(a.\)
(2) If \(a\) were rounded to the nearest tenth, the new number would be greater than \(a.\)

Answer: B

Source: Manhattan GMAT
Source: — Data Sufficiency |