Reasoning • Number & Letter SeriesMedium
What number comes next in the series: 17, 22, 31, 44, 61, ?
A. 83
B. 82✓ Correct Answer
C. 86
D. 78
💡 Solution & Explanation
Look at the differences between terms: 5, 9, 13, 17. They grow by 4 each time, so the next difference is 17 + 4 = 21. The next term is 61 + 21 = 82.