Find the one which does not belong to that group ?

Correct answer: C. 4242

A. 4422
B. 2442
C. 4242
D. 2244

Explanation

4422, 2442, and 2244 each contain a pair of identical adjacent digits, namely 44 or 22. In 4242, the digits strictly alternate, so it has no identical adjacent pair. A student may choose 2442 because it is a palindrome, but 2442 is not the only option with a special digit arrangement.

Written and checked by Zahid Hussain, MS Computer ScienceLast updated 2 September 2026

Report an error

What is wrong?

Which one should be correct?

Anything to add? (optional)

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? [email protected]

About Sequences and Series

Sequences describe ordered terms formed by a pattern, while series represent the sum of those terms. Questions cover arithmetic and geometric sequences, their nth terms, common difference or ratio, finite sums, and applications, with the sequence itself kept distinct from the corresponding series.

Practise Algebra

269 free Algebra MCQs from Mathematics, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Start a free Algebra test All Algebra MCQs

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Mathematics questions like this

Mathematics is on 76 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

Lecturer Mathematics Test Mathematics80 MCQs NET Mathematics80 MCQs Subject Specialist Mathematics Test Mathematics80 MCQs ATS Mathematics30 MCQs CA QAT Mathematics30 MCQs CTS Mathematics30 MCQs ECAT Mathematics30 MCQs ETEA Engineering Admission Test Mathematics30 MCQs ETEA Recruitment Tests Mathematics30 MCQs GAT General Mathematics30 MCQs GIKI Mathematics30 MCQs NAT Mathematics30 MCQs NED Mathematics30 MCQs NTS Mathematics30 MCQs OTS Mathematics30 MCQs PIEAS Mathematics30 MCQs PTS Mathematics30 MCQs STS Mathematics30 MCQs UTS Mathematics30 MCQs BCAT Mathematics25 MCQs ISSB Mathematics25 MCQs CSS MPT Mathematics20 MCQs PAF Mathematics20 MCQs PAF Airman Mathematics20 MCQs Pakistan Army Commissioned Officer Test Mathematics20 MCQs Pakistan Navy Test Mathematics20 MCQs Patwari Test Mathematics20 MCQs PMA Long Course Test Mathematics20 MCQs PMD Mathematics20 MCQs Computer Operator Test Mathematics15 MCQs DEO Mathematics15 MCQs Educators ESE Test Mathematics15 MCQs Educators SESE Test Mathematics15 MCQs Educators SST Test Mathematics15 MCQs FBR Mathematics15 MCQs JEST Mathematics15 MCQs Junior Clerk Test Mathematics15 MCQs LAT Mathematics15 MCQs NADRA Mathematics15 MCQs PST Mathematics15 MCQs Sub Registrar Test Mathematics15 MCQs AJKPSC Mathematics10 MCQs Assistant BS-16 Test Mathematics10 MCQs BPSC Mathematics10 MCQs ECP Mathematics10 MCQs FIA Mathematics10 MCQs FPSC Mathematics10 MCQs GBPSC Mathematics10 MCQs IB Mathematics10 MCQs Intelligence Officer Mathematics10 MCQs KPPSC Mathematics10 MCQs MES Mathematics10 MCQs NAB Mathematics10 MCQs National Highways and Motorway Police Test Mathematics10 MCQs Pakistan Railways Recruitment Test Mathematics10 MCQs PCS Mathematics10 MCQs PIA Mathematics10 MCQs PPSC Mathematics10 MCQs Punjab Police ASI Test Mathematics10 MCQs Punjab Police Sub Inspector Test Mathematics10 MCQs SNGPL Mathematics10 MCQs SPSC Mathematics10 MCQs Sub Engineer Civil Test Mathematics10 MCQs Sub Engineer Electrical Test Mathematics10 MCQs Sub Engineer Mechanical Test Mathematics10 MCQs Tehsildar and Naib Tehsildar Test Mathematics10 MCQs WAPDA Mathematics10 MCQs ANF Mathematics5 MCQs ASF Mathematics5 MCQs CTD Mathematics5 MCQs Elite Police Force Test Mathematics5 MCQs Pakistan Army Soldier Test Mathematics5 MCQs Pakistan Rangers Test Mathematics5 MCQs PERA Force Test Mathematics5 MCQs Punjab Police Constable Test Mathematics5 MCQs Rescue 1122 Test Mathematics5 MCQs

More Sequences and Series questions

Find the one which does not belong to that group ?

Find the one which does not belong to that group ?

Find the one which does not belong to that group ?

Find the one which does not belong to that group ?

Find the one which does not belong to that group ?

Find the one which does not belong to that group ?