$26-10=16$, $16\div7=2\textbackslash{} \rm R\textasciitilde2$,~ it\textquotesingle s Tuesday. 
October 10th, 2021 is Sunday. What day is October $$26$$th of the same year?~\uline{~~~~~~~~~~}~ 
1. Sunday 
2. Monday 
3. Tuesday 
4. Wednesday 