1.The supermarket is open five days a week.

2.The department store is open four a week.

3.The bank is open three days a week.

4.On three consecutive days:
the bank was closed on the first day,
the department store was closed on th second day,
the supermarket was closed on the third day.

5.On Sunday all three places are closed.

6.The bamnk is not open on two consecutive days.

7.The department store is not open on four consecutive days.

8.The supermarket is not open on four consequetive days.

9.All three places are not open on Saturday and monday.

On Which one of the seven days are all three places in Cantonville open?

Hint:

Which places areopen on Monday?What places are open on Monday?