Answer:Wednesday
Step-by-step explanation:
Given
Sunday is considered as 0 day and
Monday as day 1 so Saturday must be considered as day 7
At the end of 155 days
i.e. [tex]\dfrac{155}{7}=22\times 7+1[/tex]
Up to 155 days there are 22 weeks and 1 extra day i.e.
There are 22 Mondays plus 1 extra day i.e. Tuesday
[tex]155^{th}\ \text{day is Tuesday and day after it is wednesday}[/tex]