How many license plates are possible consisting of 4 letters followed by 2 digits, if the first letter must be a C? Repetition i s allowed.
2 answers:
<span>Here total number of ways to put C on first position =1
number of ways to put any letter on second position = 26
similarly for remaining positions.
total number of ways = 1*26*26*26*10*10*10*10
</span>
First letter must be a C that is 1 choice, first slot is 1 choice 3 letter spaces left we ar allowed to repeat ther are 26 letters in the alphabet and 10 digits so there are 26 choices for each of the 3 letter slots and 10 choices for the last 2 slots so the number of licence plates is 1*26*26*26*10*10=1757600 different licecne plates
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