What you read below is true and follows a pattern:

7 + 7 = 2

8 + 8 = 4

8 + 5 = 1

6 + 9 = 3

10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

Here, the first number represents the time in AM. The second number is the number of hours you have to add in that time to get the time in PM.

7 + 7 = 2

Can be written as

7 AM + 7 hours = 2 PM (7 + 7 = 14:00)

Following the same pattern,

4 AM + 9 hours = 1 PM (4 + 9 = 13:00)

Or, 4 + 9 = 1