UGC NET Number series Previous Year Questions
JRFSmart holds 41 previous-year questions on Number series from UGC NET Paper 1 (Teaching and Research Aptitude), filed under Unit 5: Mathematical Reasoning and Aptitude, drawn from 41 of the 87 exam papers in the bank (2018–2026). Each question can be practised with a full explanation and shows how often NTA has returned to the same idea.
What is asked in Number series
The questions in this topic fall under these subtopics, ordered by how many previous-year questions each has.
| Subtopic | Questions |
|---|---|
| Constant second difference | 3 |
| Two interleaved power sequences | 3 |
| Second-order differences | 2 |
| Shrinking differences | 2 |
| Cubes plus position | 2 |
| Finding the wrong term | 2 |
| Pattern of the form 2^n x n | 1 |
| Differences that double | 1 |
| Differences alternating cubes and squares | 1 |
| Squares of triangular numbers | 1 |
| Three patterns in one series | 1 |
| Cubes minus one | 1 |
NTA repeat analysis
Number series appears in 41 of 87 papers (47%), which JRFSmart rates as high frequency.
1 question in this topic has been verified as repeated in more than one paper.
Sample previous-year questions
Find the number that can replace the question mark (?) in the series given below: 3, 8, 15, 24, 35, 48, ?
Find the missing term in the series below : 6561, 2187, 729, ?, 81, 27
Select correct number sequeces from the following: A. 5, 7, 13, 25, 45, 75 B. 17, 40, 109, 224, 385 C. 4, 11, 19, 41, 79, 169 D. 3, 2, 0, -9, -52, -280 E. 4, 13, 31, 67, 139, 280 Choose the correct answer from the options given below:
Find the number that can replace the question mark (?) in the series given below. 2/3, 1, 4/3, 5/3, 2, ?
Find the number that can replace question mark (?) in the series given below : 8, 9, 13, 22, 38 ?, 99, 148
Find the number that can replace the question mark (?) in the following series. 1, 6, 15, 28, 45, ?
Find the wrong term in the series given below: 8, 10, 24, 78, 320, 1512, 9672
Find the number that can replace the question mark (?) in the series given below : 3, 6, 24, 30 , 63, 72, ?, 132
Showing 8 of 41 questions, without answers. Practise the full set with options, the official answer and JRFSmart's explanations.
Practise Number series
All 41 questions, one topic, with explanations and repeat data. One topic in every unit is free.
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