Number Series · Question 14 · Hard
Find the wrong number in the series: 1, 2, 6, 15, 30, 56, 92
- 15
- 56
- 92
- 30
Answer and explanation
Answer: D. 30
Explanation: The differences should be the squares 1, 4, 9, 16, 25, 36: 1, 2, 6, 15, 31, 56, 92. So 30 is wrong; it should be 31.
Previous: Find the next number in the series: 2, 5, 4, 10, 8, 20, 16, ? · Next: Find the next number in the series: 7, 11, 13, 17, 19, ?
Practise number series
Try a fresh set of number series questions with an explanation after every answer, free and without signing up: Number Series practice. Or sit a full placement mock test.
More number series questions
- Find the next number in the series: 0, 6, 24, 60, 120, ?
- Find the next number in the series: 3, 4, 10, 33, 136, ?
- Find the next number in the series: 2, 5, 4, 10, 8, 20, 16, ?
- Find the next number in the series: 7, 11, 13, 17, 19, ?
- Find the next number in the series: 8, 15, 22, 29, 36, ?
- Find the next number in the series: 1, 8, 27, 64, 125, ?
- Find the next number in the series: 96, 48, 24, 12, ?
- Find the next number in the series: 2, 5, 10, 17, 26, ?
- Find the next number in the series: 100, 95, 85, 70, 50, ?
- Find the next number in the series: 4, 6, 9, 14, 21, 32, ?
More logical reasoning practice
Letter Series · Coding–Decoding · Blood Relations · Direction Sense · Seating Arrangement · Syllogisms · Analogies · Odd One Out
LogicWiz Exams home · All practice topics · Placement mock tests · Daily 10 challenge