How many possibilities are there for a 5 digit code 2024?
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Thus you have made 5 -- 4 -- 3 -- 2 1 = 120 choices and there are 120 possible 5 digit numbers made from 1, 2, 3, 4 and 5 if you don't allow any digit to be repeated. Now consider the possibilities with 13 as the first two digits. Using an argument as above I find 6 more.
2023-04-22 00:22:07
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Eliza Turner
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Thus you have made 5 -- 4 -- 3 -- 2 1 = 120 choices and there are 120 possible 5 digit numbers made from 1, 2, 3, 4 and 5 if you don't allow any digit to be repeated. Now consider the possibilities with 13 as the first two digits. Using an argument as above I find 6 more.