How many different 4 letter radio station call letters can

Last updated: 5/3/2023

How many different 4 letter radio station call letters can be made if a the first letter must be G X P or L and no letter may be repeated b repeats are allowed but the first letter is G X P or L c the first letter is G X P or L there are no repeats and the last letter is R a If the first letter must be G X P or L and all the letters in the radio station call letters must be different then there are 4 letter radio station call letters b If the first letter must be G X P or L and letters can be repeated then there are radio station call letters c If the first letter must be G X P or L and the last letter must be R and all the letters in the radio station call letters must be different then there are 4 letter words