Number Series, Coding and DecodingMCQMTP Sep 24 Series IQuestion 2196 of 217
All Questions

Choose the odd numerical pair group

Select Your Answer (Keyboard: A, B, C, D)
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Correct Answer

✅ Option b — $55-62$

All Options:

  • A$34-43$
  • B$55-62$
  • C$62-71$
  • D$83-92$

Detailed Solution & Explanation

Let's calculate the absolute difference between the two numbers in each numerical pair: - **Option A**: ∣43−34∣=9\displaystyle |43 - 34| = 9 - **Option B**: ∣62−55∣=7\displaystyle |62 - 55| = 7 - **Option C**: ∣71−62∣=9\displaystyle |71 - 62| = 9 - **Option D**: ∣92−83∣=9\displaystyle |92 - 83| = 9 All the pairs have an absolute difference of 9\displaystyle 9, except the pair $55-62$ which has an absolute difference of $7\displaystyle . Therefore, $55-62 is the odd numerical pair group. Hence, **Option B** is the correct answer.

About This Chapter: Number Series, Coding and Decoding

Paper

Paper 3: Quantitative Aptitude

Weightage

5 Marks

Key Topics

Number series, Coding & Decoding, Odd man out

This chapter covers Number series, Coding & Decoding, Odd man out and is part of Paper 3: Quantitative Aptitude in the CA Foundation exam.

View Official ICAI Syllabus

Exam Strategy Tip

This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.

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