Question

Two difference between personal letter and informal letter

Answer 1

personal letter . we write personal letter to our relatives , friends and family also in personal relationship
informal letter. we write informal letter for job interview ,to our teachers and principals

Answer 2

A letter is said to be informal when it is written in a friendly manner, to someone you are familiar with. Formal letters are written for official or professional communication. On the other hand, informal letters are used for casual or personal communication.