Write the following sets in tabular form :
{x:x is a month of a year having less than 31 days}

Answer

To write the set of months that have less than 31 days in tabular form, we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Months**: First, we need to identify all the months of the year and their respective number of days.
- January: 31 days
- February: 28 or 29 days (less than 31)
- March: 31 days
- April: 30 days (less than 31)
- May: 31 days
- June: 30 days (less than 31)
- July: 31 days
- August: 31 days
- September: 30 days (less than 31)
- October: 31 days
- November: 30 days (less than 31)
- December: 31 days

2. **Select the Months with Less than 31 Days**: From the above list, we will select the months that have less than 31 days.
- February (28 or 29 days)
- April (30 days)
- June (30 days)
- September (30 days)
- November (30 days)

3. **Write the Set in Tabular Form**: Now we will write these months in a tabular form.
- The set can be represented as:
\[ \{ \text{February, April, June, September, November} \} \]

### Final Answer:
The required set in tabular form is:
\[ \{ \text{February, April, June, September, November} \} \]