document.write( "Question 466924: A witness to a bank robbery somewhere in Quezon City reported to the police that he saw the \n" );
document.write( "suspects escape in vehicle with a license plate beginning with the letters WJK followed by three \n" );
document.write( "digits. Find the minimum number of automobile registrations the police may have to check if:\r \n" );
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document.write( "a. the witness cannot recall the last three digits. \n" );
document.write( "b. the witness cannot recall the last three digits, but is certain that all three digits are unique to \n" );
document.write( "each other. \n" );
document.write( "c. If the witness cannot recall the last three digits, but is certain that all three digits are unique \n" );
document.write( "to each other and that the bank robbery took place last Wednesday while the Unified \n" );
document.write( "Vehicle Volume Reduction Program (UVVRP) is in effect. \n" );
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