Simen Simensen Ramstad - whose burial record?

In the churchbooks from Fet, Akershus, there is a 1720 burial recorded with the name Simen Ramstad. However, Simen Simensen Ramstad died in 1741 according to the bygdebok for Fet. However, according to the bygdebok, his father Simen Olsen, who lived on Longelstad, died in 1720. I was hoping to use the burial record to determine his father's age, but it looks to me like the age recorded on the record is 3 years, which doesn't make much sense, also considering that Simen Simensen Ramstad didn't have any children until 1724. Can anybody help me parse this burial record? [View image]