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In a certain region all license plates are composed of three letters followed by three numbers, or four letters followed by two numbers. Find how many license plates are possible.

 Feb 10, 2022
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Note :  We have 26 possible letters   and  0-9  =  10 possible numbers

 

The number of posssible plates  = 

 

(26)^3  (10)^3   +   (26)^4 ( 10)^2  =  63,273,600

 

cool cool cool

 Feb 10, 2022

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