The Gauteng government introduced a new licence-plate system in December 2010, the month it expected to run out of numbers to allocate under the old system. The number plates for motor vehicles in Gauteng used to be created as follows: Three letters excluding the vowels A,E,I,O,U as well as Q( repetition allowed)Y G GThree digits 0,1,2,3,4,5,6,78,9 (repetition allowed)For example:8 6 6The latest number plates for Gauteng have been changed. The same letters and digits are used as before but the structure is as follows:Two letter Two digits Two letter B B 0 1 C Y (a) how many possible number plates were there with the old system?(b) how many number plates are there with new system?(c) why do you think that the traffic department changed to the new system?
The Gauteng government introduced a new licence-plate system in December 2010, the month it expected to run out of numbers to allocate under the old system. The number plates for motor vehicles in Gauteng used to be created as follows: Three letters excluding the vowels A,E,I,O,U as well as Q( repetition allowed)Y G GThree digits 0,1,2,3,4,5,6,78,9 (repetition allowed)For example:8 6 6The latest number plates for Gauteng have been changed. The same letters and digits are used as before but the structure is as follows:Two letter Two digits Two letter
B B 0 1 C Y
(a) how many possible number plates were there with the old system?(b) how many number plates are there with new system?(c) why do you think that the traffic department changed to the new system?
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