Question 242970
While cleaning out a garage, John found four old single-digit house numbers, one 3, one 4, and two 5s. The number of different two-digit house numbers he can create using any two of them is:
34,35,43,45,53,54,55
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Cheers,
Stan H.
 
a. 12 b. 5 c. 6 d. 7 e. none