Find the missing term: P3C, R5E, T8I, V12L, ?
Select Your Answer (Keyboard: A, B, C, D)
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Number Series, Coding and DecodingMCQPYQ Jan 21Question 2019 of 217
All Questions Correct Answer
✅ Option c — X17O
All Options:
- AY17O
- BX17M
- CX17O
- DX16O
Detailed Solution & Explanation
We are given the alphanumeric series: P3C, R5E, T8I, V12L, ?
Let's analyze each component of the terms:
1. **First Letter:** P, R, T, V
- Alphabetic positions: P (16), R (18), T (20), V (22).
- Pattern: position shift each time. The next letter position is $22 + 2 = 245 - 3 = 28 - 5 = 3\displaystyle , $12 - 8 = 4.
- The differences increase by each time ().
- The next difference is . The next number is $12 + 5 = 17+3$ each time. The term "R5E" in the question text is a misprint of "R5F". Using the standard $+3\displaystyle pattern, the next letter position is $12 + 3 = 15, which corresponds to the letter **O**.
Combining the parts: X + 17 + O = **X17O**.
Hence, **Option C** is the correct answer.
Let's analyze each component of the terms:
1. **First Letter:** P, R, T, V
- Alphabetic positions: P (16), R (18), T (20), V (22).
- Pattern: position shift each time. The next letter position is $22 + 2 = 245 - 3 = 28 - 5 = 3\displaystyle , $12 - 8 = 4.
- The differences increase by each time ().
- The next difference is . The next number is $12 + 5 = 17+3$ each time. The term "R5E" in the question text is a misprint of "R5F". Using the standard $+3\displaystyle pattern, the next letter position is $12 + 3 = 15, which corresponds to the letter **O**.
Combining the parts: X + 17 + O = **X17O**.
Hence, **Option C** 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 SyllabusExam Strategy Tip
This topic carries 5 Marks weightage. Focus on understanding core concepts rather than memorizing.
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