Table:
text: 1960 Philadelphia Eagles season
Schedule
Schedule
Week Date_ Opponent Result_ Attendance
11 December 4, 1960 at St. Louis Cardinals W 20–6 21358
12 December 11, 1960 at Pittsburgh Steelers L 21-27 22101
13 December 18, 1960 at Washington Redskins W 38–28 20558

Question: How many weeks was a score of w 20-6 for the Philadelphia Eagles 1960 season?