In March 2009, how many weekend days (Saturdays and Sundays together) are there in total?

Introduction / Context:
This calendar question asks for the total number of weekend days (all Saturdays and all Sundays) in March 2009. Many candidates confuse “weekends” with “full Saturday–Sunday pairs.” Here, we count the individual weekend days.

Given Data / Assumptions:

• Target month: March 2009.
• Weekend days considered: Saturdays and Sundays.
• March has 31 days.

Concept / Approach:
Find the weekday of March 1, 2009, then list the Saturdays and Sundays within the month. Every 7 days the same weekday repeats. Count occurrences within 31 days.

Step-by-Step Solution:
March 1, 2009 was a Sunday.Sundays in March 2009: 1, 8, 15, 22, 29 → 5 Sundays.Saturdays in March 2009: 7, 14, 21, 28 → 4 Saturdays.Total weekend days = 5 + 4 = 9.

Verification / Alternative check:
31 days = 4 full weeks (28 days) + 3 extra days. Starting on Sunday, the extras are Sun, Mon, Tue, which contributes one extra Sunday beyond the 4 week cycle, confirming 5 Sundays and 4 Saturdays.

Why Other Options Are Wrong:
10 assumes 5 Saturdays + 5 Sundays (not possible with a 31-day month starting on Sunday). 8 counts only 4+4 or only pairs. “None of these” is unnecessary since 9 is valid.

Common Pitfalls:
Interpreting “weekends” as “number of Saturday–Sunday pairs” (which would be 4). The question asks total weekend days.

Final Answer:
9