The mean of the data set comprising of 16 observations is $16$. If one of the observation valued 16 is deleted and three new observations valued 3,4,and 5 are added to the data , then the mean of the resultant data, is :

Question

$\begin{array}{1 1} 16.0 \\ 15.8 \\ 14.0 \\ 16.8 \end{array} $