Series Questions with Solutions
Series questions give a sequence of numbers, letters or a mix of both, and ask you to find the next term, a missing term, or the wrong term. This topic covers number series (based on differences, squares and cubes, multiplication, or mixed operations), letter series, alphanumeric series, and repeating letter patterns. Start by checking the differences between consecutive terms. If those don't show a pattern, check the second differences, ratios, squares and cubes nearby, or whether two separate series alternate. For letter series, convert letters to their alphabet positions and look for the number pattern. With practice, recognising common patterns becomes quick and these questions become reliable marks. Practise the series questions below, each with a step-by-step solution that shows the pattern.
- Q1.
Find the wrong number in the given series: 4, 5, 13, 39, 160, 805
A. 13B. 39C. 5D. 805mediumAsked in MAH MCA CET 2023View solution › - Q2.
Find the wrong one: 12, 24, 47, 93, 187, 373, 747
A. 24B. 47C. 93D. 187mediumAsked in MAH MCA CET 2023View solution › - Q3.
DMC, GNH, JOM, ______
A. MPRB. MPUC. IPUD. MRPmediumAsked in MAH MCA CET 2023View solution › - Q4.
Find the next term in the series: KJR, MMP, OPN, QSL, ?
A. MGLB. LKTC. SVJD. ALTmediumAsked in MAH MCA CET 2023View solution › - Q5.
Look at this series: What number should come next?
A. 12B. 14C. 27D. 53mediumAsked in MAH MCA CET 2025View solution › - Q6.
What is the next number in the sequence:
A. 30B. 36C. 42D. 50mediumAsked in MAH MCA CET 2025View solution › - Q7.
Find the missing letters in the series: BKK, DMM, FOO, __, JSS.
A. HLLB. HBBC. HTTD. HQQmediumAsked in MAH MCA CET 2024View solution › - Q8.
Identify the next two numbers in the following sequence: 17, 20, 9, 12, 5, 6, 3, 2, ____, ____
A. 0, 2B. 2, 0C. 1, 2D. 2, 1mediumAsked in NIMCET 2023View solution › - Q9.
Find the next term: 3, 8, 13, 24, 41, ?
A. 70B. 75C. 80D. 85mediumAsked in NIMCET 2010View solution › - Q10.
Find the next term: 4, 23, 60, 121, ?
A. 212B. 221C. 241D. 242mediumAsked in NIMCET 2010View solution › - Q11.
Which should be the next two numbers in the series 28, 25, 5, 21, 18, 5, 14, ?, ?
A. 11, 5B. 10, 7C. 11, 8D. 5, 10mediumAsked in NIMCET 2010View solution › - Q12.
Find the missing alphabet in the following series? N, E, S, S, F, F, T, T, ?
A. OB. UC. SD. EmediumAsked in MAH LLB 3 Year CET 2 April Shift-2 2026View solution › - Q13.
Choose the missing term out of the given alternatives: Q1F, S2E, U6D, W21C, ?
A. Y66BB. Y44BC. Y88BD. Z886mediumAsked in NIMCET 2021View solution › - Q14.
Which of the following two patterns will fit in the blanks of the series ZA5, Y4B, XC6, W3D, ______, ______?
A. VE7 and U2EB. V2E and U7FC. VE7 and U2FD. VF7 and U2EmediumAsked in NIMCET 2015View solution › - Q15.
Which of the following numbers comes next in the two-digit number sequence 61, 52, 63, 94, ______?
A. 65B. 64C. 56D. 46mediumAsked in NIMCET 2015View solution › - Q16.
Which of the following numbers comes next in the series 8, 6, 9, 23, 87, ______?
A. 128B. 226C. 324D. 429mediumAsked in NIMCET 2015View solution › - Q17.
Find the missing term of the following series: DCXW, HGTS, ______, POLK, TSHG
A. KLOPB. LKOPC. KLPOD. LKPOmediumAsked in NIMCET 2017View solution › - Q18.
Find out the wrong number in the following series: 15, 16, 34, 105, 424, 2124, 12756
A. 16B. 34C. 424D. 2124mediumAsked in NIMCET 2018View solution › - Q19.
Find the missing term in the series: 3, 20, 63, 144, 275, ___
A. 354B. 468C. 548D. 554mediumAsked in NIMCET 2018View solution › - Q20.
Find the wrong number in the series 7, 8, 18, 57, 228, 1165, 6996.
A. 228B. 18C. 57D. 8mediumAsked in NIMCET 2019View solution ›