(i) In the given figure, \(PQ||XY||BC\), \(AP = 2 \ cm\), \(PX =1.5 \ cm\) and \(BX =4 \ cm\). If \(QY = 0.75 \ cm\), then \(AQ + CY =\) ___________\(cm\)

(ii) In the given figure, in \(\Delta ABC\), \(DE || BC\). If \(AD =3.6 \ cm\), \(DB =2.4 \ cm\) and \(AE = 2.1 \ cm\), then the length of \(AC\) is___________\(cm\).
