If the national day of a country was celebrated on the 4th Saturday of a month, then find the date of celebration in that month, when the first day of the month is Tuesday.

26th

The correct answer is Option (3) → 26th

To find the date of the 4th Saturday, we first need to determine when the very first Saturday of the month occurs.

1. Find the First Saturday

We are given that the 1st day of the month is Tuesday.

• 1st: Tuesday
• 2nd: Wednesday
• 3rd: Thursday
• 4th: Friday
• 5th: Saturday (1st Saturday)

2. Calculate the Remaining Saturdays

Since a week has 7 days, we simply add 7 to find the subsequent Saturdays:

• 1st Saturday: 5th
• 2nd Saturday: $5 + 7 =$ 12th
• 3rd Saturday: $12 + 7 =$ 19th
• 4th Saturday: $19 + 7 =$ 26th

Conclusion

The national day was celebrated on the 26th.