Quantitative Reasoning · Medium
Medium number series puzzles
17 medium puzzles. Which number comes next? Each one links to its answer and a worked solution.
About this set
Medium series use gaps that grow, square numbers, or two series taking turns. Rules in these 17 puzzles: two interleaved series (8 of 17), growing gaps (6 of 17), square numbers (3 of 17).
Want your own number? The test is 25 visual puzzles, about 12 minutes, no sign-up.
- Plate 01 · Number Seriesgrowing gaps
12, 15, 20, 27, 36, 47, ?
- Plate 02 · Number Seriesgrowing gaps
3, 5, 8, 12, 17, 23, ?
- Plate 03 · Number Seriesgrowing gaps
12, 14, 18, 24, 32, 42, ?
- Plate 04 · Number Seriestwo interleaved series
16, 57, 18, 56, 20, 55, ?
- Plate 05 · Number Seriestwo interleaved series
9, 20, 11, 18, 13, 16, ?
- Plate 06 · Number Seriestwo interleaved series
13, 21, 18, 19, 23, ?
- Plate 07 · Number Seriestwo interleaved series
7, 32, 10, 34, 13, 36, ?
- Plate 08 · Number Seriesgrowing gaps
8, 10, 14, 20, 28, ?
- Plate 09 · Number Seriestwo interleaved series
11, 31, 15, 30, 19, 29, ?
- Plate 10 · Number Seriessquare numbers
10, 17, 26, 37, 50, 65, ?
- Plate 11 · Number Seriestwo interleaved series
19, 25, 22, 27, 25, ?
- Plate 12 · Number Seriestwo interleaved series
13, 45, 19, 49, 25, 53, ?
- Plate 13 · Number Seriessquare numbers
11, 18, 27, 38, 51, 66, ?
- Plate 14 · Number Seriestwo interleaved series
2, 40, 4, 45, 6, 50, ?
- Plate 15 · Number Seriesgrowing gaps
12, 15, 19, 24, 30, ?
- Plate 16 · Number Seriesgrowing gaps
4, 5, 9, 16, 26, 39, ?
- Plate 17 · Number Seriessquare numbers
7, 12, 19, 28, 39, ?
Rules in this set
| Rule | Puzzles |
|---|---|
| two interleaved series | 8 |
| growing gaps | 6 |
| square numbers | 3 |
Other levels: easy number series puzzles · hard number series puzzles · all number series puzzles · how to solve them
2 questions
Questions
How hard are the medium number series puzzles?
Medium series use gaps that grow, square numbers, or two series taking turns. The rules used in this set: two interleaved series (8), growing gaps (6), square numbers (3).
Can I see the answers?
Yes. Every puzzle page has a Show the answer button with the correct option and a step-by-step solution. You can also tap an option first to check yourself.
Related
- No. 01Number Series puzzles50 puzzles, easy to hard. Which number comes next?
- No. 02Easy number series17 easy puzzles with answers and worked solutions.
- No. 03Hard number series16 hard puzzles with answers and worked solutions.
- No. 04Number Series #1 (medium)Which number comes next? Medium, with the answer explained.
- No. 05Number sequence testTen number series, 30 seconds each. Find the rule.
25 puzzles · about 12 min
Find your IQ in 12 minutes.
25 visual puzzles, free to take. Your full result, with your estimated IQ, percentile and five-area breakdown, is $4.95 one time.
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