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Mathematics, 16.03.2020 17:03 paulat
(a) How many different license plates involving three letters and two digits are there if the three letters appear together either at the beginning or end of the license? (b) How many license plates involving one, two, or three letters and one, two, or three digits are there if the letters must appear in a consecutive grouping?
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(a) How many different license plates involving three letters and two digits are there if the three...
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