In CB configuration current gain 0.98, the current gain in CE configuration

$\begin{array}{l}Current Gain in CB : \alpha =0.98\\ Current Gain in CE : \beta =\frac{\alpha }{1-\alpha }=\frac{0.98}{1-0.98}=\frac{0.98}{0.02}=49.00\\ \end{array}$