If 5 th march 1991 was Friday what day of the week was it on 9th march 2000

Options

A. Wednesday
B. Saturday
C. Friday
D. Thursday

Answer

To determine the day of the week on 9th March 2000 given that 5th March 1991 was a Friday, we can follow these steps:

### Step 1: Identify the time span
We need to calculate the number of days from 5th March 1991 to 9th March 2000.

### Step 2: Break down the years
- From 5th March 1991 to 5th March 2000 is 9 years.
- Then, we need to add the days from 5th March 2000 to 9th March 2000.

### Step 3: Count the leap years
In the period from 1991 to 2000, we need to identify the leap years:
- Leap years: 1992, 1996
- Total leap years = 2

### Step 4: Calculate total days
- Total years = 9
- Total days from non-leap years = (9 years - 2 leap years) × 365 = 7 × 365 = 2555 days
- Total days from leap years = 2 × 366 = 732 days
- Total days from 5th March 1991 to 5th March 2000 = 2555 + 732 = 3287 days

### Step 5: Add days from 5th March 2000 to 9th March 2000
- From 5th March to 9th March = 4 days

### Step 6: Total days from 5th March 1991 to 9th March 2000
- Total days = 3287 + 4 = 3291 days

### Step 7: Calculate odd days
- To find the odd days, we divide the total days by 7 (since there are 7 days in a week):
- 3291 ÷ 7 = 470 weeks and 1 day
- Odd days = 1

### Step 8: Determine the day of the week
- Starting from Friday (5th March 1991), we add the odd days:
- Friday + 1 day = Saturday

### Conclusion
Therefore, 9th March 2000 was a **Saturday**.

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