Number Series Questions

21) 8, 9, 17, 26, 43, 69, 113
  • 9
  • 17
  • 43
  • None of these
Explanation

Correct Answer: None of these

Series follows Fibonacci pattern; last term should be 112, not 113.


22) 3, 3, 6, 18, 72, 380, 2160
  • 3
  • 18
  • 72
  • 380
Explanation

Correct Answer: 380

Correct pattern is ×1, ×2, ×3, ×4, ×5, ×6. 380 breaks the rule.


23) 10, 5, 5, 7.5, ______
  • 12
  • 10
  • 15
  • 12.5
Explanation

Correct Answer: 15

Multiplying by 0.5, 1, 1.5, 2 respectively.


24) CDF, EFH, HIK, ______, TUW, EFH
  • MNP
  • KLN
  • MOP
  • MNO
Explanation

Correct Answer: MNP

Alphabet positions increase by +2, +3, +5, +7, +11.


25) BDFH, CBID, DZLZ, EXOV, ______
  • FVRS
  • FVQR
  • FVRR
  • FURR
Explanation

Correct Answer: FVRR

Alternating + and − alphabet shifts.


26) ACDB, BEGF, DHKK, GLPQ, ______
  • KQVW
  • KQVX
  • KQTX
  • KPVX
Explanation

Correct Answer: KQVX

Each letter increases progressively across positions.


27) A3B, C8E, ______, G18K, I23N, K28Q
  • D12I
  • E13H
  • E15H
  • E14H
Explanation

Correct Answer: E13H

Middle number equals sum of alphabet positions of letters.


28) 1L2, 1Q7, 2T0, ______, 2X4, 2Z6
  • 2WI
  • 2V2
  • IM4
  • IP5
Explanation

Correct Answer: 2V2

Digits form the alphabetical position of the letter.


29) 4B2, 8G1, 9H1, ______, 7B5
  • 8E2
  • 9C7
  • 6C3
  • 7D4
Explanation

Correct Answer: 6C3

First digit − last digit gives letter position.


30) J10Z26, K11Y25, L12X24, ______
  • M13Y25
  • N14W22
  • M13W23
  • M13Y24
Explanation

Correct Answer: M13W23

Forward alphabetical order and reverse alphabetical order pattern.


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The Xavier General Management Aptitude Test (XGMT) is the entrance exam for admission to MBA/PGDM programs of Xavier University, Bhubaneswar (XUB). The exam tests a candidate’s aptitude in Quantitative Ability, Verbal Ability, Data Interpretation, Logical Reasoning, and Decision Making.