Question 3
A year has four quarters, consisting of months (1, 2, 3), (4, 5, 6), (7, 8, 9) and (10, 11, 12). In a certain year, exactly one quarter has equal numbers of Mondays, Tuesdays, Wednesdays, Thursdays, Fridays, Saturdays and Sundays. What weekday is the first day of that quarter, given that 8 January is a Sunday?
