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Mathematics, 25.02.2021 06:40 colexie7410

PLEASE HELP! a. How many 7-digit numbers have odd numbers in the odd positions (i. e. odd numbers in the first, third, fifth and seventh positions)? (2)

b. How many of these have even numbers in the even positions?


PLEASE HELP! a. How many 7-digit numbers have odd numbers in the odd positions (i.e. odd numbers in

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