एक औपचारिक पत्र में 'Yours faithfully' का प्रयोग कब किया जाता है? When is 'Yours faithfully' used in a formal letter?
When the recipient's name is known and used in salutation
When the salutation is 'Dear Sir/Madam' (name not known)
In informal letters to friends
In Demi-Official Letters only
सही उत्तर : 2