Aging Schedule Receivables Balance on Estimated \begin{tabular}{lcc} Aging Class & December 31,2020 & Percent Uncollectib \\ \hline 030 days & $150,000 & 1% \\ 3160 days & 75,000 & 4% \\ 6190 days & 55,000 & 25% \\ 91120 days & 35,000 & 30% \\ Over 120 days & 30,000 & 55% \end{tabular} Aging Schedule Receivables Balance on Estimated \begin{tabular}{lcc} Aging Class & December 31,2020 & Percent Uncollectib \\ \hline 030 days & $150,000 & 1% \\ 3160 days & 75,000 & 4% \\ 6190 days & 55,000 & 25% \\ 91120 days & 35,000 & 30% \\ Over 120 days & 30,000 & 55% \end{tabular}