List of top General Aptitude Questions on Real Numbers

The ceiling function of a real number \( x \), denoted by \( ce(x) \), is defined as the smallest integer that is greater than or equal to \( x \). Similarly, the floor function, denoted by \( fl(x) \), is defined as the largest integer that is smaller than or equal to \( x \). Which one of the following statements is NOT correct for all possible values of \( x \)?
The ceiling function of a real number \(x\), denoted by \(ce(x)\), is defined as the smallest integer \(\geq x\). The floor function, denoted by \(fl(x)\), is defined as the largest integer \(\leq x\). Which one of the following statements is NOT correct for all possible values of \(x\)?