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Mr-Rahmat-decided-to-create-a-password-with-the-form-numbers-and-letterse-intermittntly-intermittent-can-also-be-letters-and-numbers-intermittently-but-no-nmbers-and-letters-are-the-same-It-c




Question Number 130689 by liberty last updated on 28/Jan/21
  Mr. Rahmat decided to create a password   with the form numbers and letterse  intermittntly  intermittent ( can also be  letters and numbers intermittently) but no  nmbers and letters are the same. It   chooses to use numbers on the set  {2, 5, 8, 9}   and selects the letters on the set { A, X, Y, W,Z}    How many passwords can I create
$$ \\ $$$$\mathrm{Mr}.\:\mathrm{Rahmat}\:\mathrm{decided}\:\mathrm{to}\:\mathrm{create}\:\mathrm{a}\:\mathrm{password}\: \\ $$$$\mathrm{with}\:\mathrm{the}\:\mathrm{form}\:\mathrm{numbers}\:\mathrm{and}\:\mathrm{letterse} \\ $$$$\mathrm{intermittntly}\:\:\mathrm{intermittent}\:\left(\:\mathrm{can}\:\mathrm{also}\:\mathrm{be}\right. \\ $$$$\left.\mathrm{letters}\:\mathrm{and}\:\mathrm{numbers}\:\mathrm{intermittently}\right)\:\mathrm{but}\:\mathrm{no} \\ $$$$\mathrm{nmbers}\:\mathrm{and}\:\mathrm{letters}\:\mathrm{are}\:\mathrm{the}\:\mathrm{same}.\:\mathrm{It}\: \\ $$$$\mathrm{chooses}\:\mathrm{to}\:\mathrm{use}\:\mathrm{numbers}\:\mathrm{on}\:\mathrm{the}\:\mathrm{set}\:\:\left\{\mathrm{2},\:\mathrm{5},\:\mathrm{8},\:\mathrm{9}\right\}\: \\ $$$$\mathrm{and}\:\mathrm{selects}\:\mathrm{the}\:\mathrm{letters}\:\mathrm{on}\:\mathrm{the}\:\mathrm{set}\:\left\{\:\mathrm{A},\:\mathrm{X},\:\mathrm{Y},\:\mathrm{W},\mathrm{Z}\right\}\: \\ $$$$\:\mathrm{How}\:\mathrm{many}\:\mathrm{passwords}\:\mathrm{can}\:\mathrm{I}\:\mathrm{create}\: \\ $$

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