Easy
๐Ÿ—‚ Logic
โšก 8 XP

Sequence Puzzle #205

๐Ÿ‘ฅ 4,619 solved ๐Ÿ“Š 46% solve rate ๐Ÿ˜ 54% fail rate
What number comes next in this arithmetic sequence: 5, 9, 13, 17, ...?
๐Ÿ“Š Only 46% solve this correctly
๐Ÿ‘ฅ 4,619 attempts
โšก Earn +8 XP for solving
โ“ Quick Answer & Explanation
21

The answer to this riddle is 21. Difficulty: Easy ยท Solved by 4,619 puzzle lovers.

Look at the difference between consecutive numbers: it is +4
โ† Sequence Puzzle #204 Sequence Puzzle #206 โ†’
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