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Mathematics, 05.04.2022 17:50 starburst2005

What number (X) comes next in the series (17, 9, 18, 7, 19, 5, 20, X) 3
4
16
21
23

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Answers: 2

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What number (X) comes next in the series (17, 9, 18, 7, 19, 5, 20, X) 3
4
16
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