Find next term of the letter series A, CD, GHI, UVWXY, ______.
Select Your Answer (Keyboard: A, B, C, D)
For any discrepancies in this question, email contact@cadada.in
Number Series, Coding and DecodingMCQMTP June 22Question 2061 of 217
All Questions Correct Answer
✅ Option a — MNOP
All Options:
- AMNOP
- BMNO
- CMNOPQ
- DNOPQ
Detailed Solution & Explanation
To find the next term of the letter series A, CD, GHI, UVWXY, ______ (where the blank is the 4th term):
Let us analyze the number of letters in each term and the number of skipped letters between them:
1. **Length of each term:**
- 1st term (): 1 letter
- 2nd term (): 2 letters
- 3rd term (): 3 letters
- 4th term (missing): should have 4 letters
- 5th term (): has 5 letters
Thus, the missing term must have exactly **4 letters**.
2. **Number of letters skipped between consecutive terms:**
- Between 1st and 2nd term (): We skip letter ().
- Between 2nd and 3rd term (): We skip letters ().
- Between 3rd and 4th term (): We must skip letters ($J, K, L$). Starting after , the next letter is . Since it must contain 4 letters, the term is .
- Between 4th and 5th term (): We skip letters ($Q, R, S, T$), which perfectly leads to the start of at .
This logical framework proves that the missing term is **MNOP** (4 letters), which corresponds to **Option A**.
*Note on Answer Key Discrepancy:* The textbook answer key lists **Option C** () as correct. However, contains 5 letters, which violates the length progression (1, 2, 3, 4, 5) and leaves no letters to skip before (since is included, the next letters $R, S, T$ would only be 3 skipped letters instead of the required 4). Thus, the answer key's selection of Option C is a typographical error, and the correct logical answer is indeed **Option A**.
Hence, **Option A** is the correct answer.
Let us analyze the number of letters in each term and the number of skipped letters between them:
1. **Length of each term:**
- 1st term (): 1 letter
- 2nd term (): 2 letters
- 3rd term (): 3 letters
- 4th term (missing): should have 4 letters
- 5th term (): has 5 letters
Thus, the missing term must have exactly **4 letters**.
2. **Number of letters skipped between consecutive terms:**
- Between 1st and 2nd term (): We skip letter ().
- Between 2nd and 3rd term (): We skip letters ().
- Between 3rd and 4th term (): We must skip letters ($J, K, L$). Starting after , the next letter is . Since it must contain 4 letters, the term is .
- Between 4th and 5th term (): We skip letters ($Q, R, S, T$), which perfectly leads to the start of at .
This logical framework proves that the missing term is **MNOP** (4 letters), which corresponds to **Option A**.
*Note on Answer Key Discrepancy:* The textbook answer key lists **Option C** () as correct. However, contains 5 letters, which violates the length progression (1, 2, 3, 4, 5) and leaves no letters to skip before (since is included, the next letters $R, S, T$ would only be 3 skipped letters instead of the required 4). Thus, the answer key's selection of Option C is a typographical error, and the correct logical answer is indeed **Option A**.
Hence, **Option A** 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.
Related Comparison Tables
More Questions from Number Series, Coding and Decoding
The number in place of question mark in: $7, 26, 63, 124, 215, ?, 511$ is
Find missing term $7, 26, 63, 124, 215, 342, ?$
Which number should come next $7, 26, 63, 124, 215, 342, ?$
If CLOCK is coded as 34235 and TIME as 8679, then MOTEL is coded as:
If MOUSE, is coded as 34651 and KEY is coded as 217, then how will YES be coded?
In a certain code language PREMONITION is written as $68530492904$, how will the word MONITOR be written in that code language?
Ready to Master Number Series, Coding and Decoding?
Practice all 217 questions with instant feedback, earn XP, track your streaks, and ace your CA Foundation exam.
Start Practicing — It's Free