Solution:
If the given month is of 30 days, then
Fridays in the month: 2, 9, 16, 23, 30
Thus, 1st day of the next month is a Saturday.
Saturdays in the next month: 1, 8, 15, 22, 29
Thus, the last day of the next month = 31st day of the month = Monday
Now, if the given month is of 31 days, then
Fridays in the month: 2, 9, 16, 23, 30
Thus, 1st day of the next month is a Sunday.
Sundays in the next month: 1, 8, 15, 22, 29
Thus, the last day of the next month = 31st day of the month = Tuesday
Therefore, to determine the exact answer we need to know the number of days in the given month.
Hence, the correct answer is ‘Data Inadequate’.