Friday, November 8, 2013

The letters a through z are used 3 at a time (repetition allowed) followed by 3 digits at a time (0

There are 6 positions in a license plate. 3 letters and 3 digits. 


There are 26 letters and 10 digits.


As the repetition is allowed in all the positions, 


the number of chances of 1st position is 26, 2nd and 3rd position is also 26.


the number of chances of 4th position is 10 and 5th and 6th is also 10.


To get total number of license plates is multiplication of all the number of chances of all the positions



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