What comes next?
C3, X24, D4, W23, ?
E5
Sequence Analysis
The question presents a sequence with alternating letters and numbers: C3, X24, D4, W23, ? We need to identify the pattern to find the next term.
Letter Pattern Identification
Let's analyze the letters C, X, D, W:
- C is the 3rd letter of the alphabet.
- X is the 24th letter. Notice that 24 = 27 - 3.
- D is the 4th letter of the alphabet.
- W is the 23rd letter. Notice that 23 = 27 - 4.
The pattern alternates between a letter's position (n) and the position of the letter from the end of the alphabet (27-n).
Following this pattern:
- After C (3rd) and X (27-3 = 24th), we have D (4th).
- The next letter should follow the reverse pattern: 27 - 4 = 23rd letter (W).
- The next letter in the sequence should be the 5th letter (n=5).
The 5th letter of the alphabet is E.
Number Pattern Identification
Now, let's look at the numbers 3, 24, 4, 23:
- The first number is 3.
- The second number is 24. Notice that 24 = 27 - 3.
- The third number is 4.
- The fourth number is 23. Notice that 23 = 27 - 4.
This number pattern mirrors the letter pattern, using 'n' and '27-n'.
Following this pattern:
- After 3 and 24 (27-3), we have 4.
- The next number should follow the reverse pattern: 27 - 4 = 23. (This corresponds to W23).
- The term after W23 should use the next number in the primary sequence, which is 5 (n=5).
The next number is 5.
Combining Patterns
The letter pattern requires the 5th letter (E), and the number pattern requires the number 5.
Therefore, the next term in the sequence is E5.
Similar Questions
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Important Questions from Alpha-numeric series
Consider the following sequence of numbers: 5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6 How many odd numbers are followed by the odd number in the above sequence?
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Select the missing numbers from the given alternatives
How many such pairs of letters are there in the word JOURNEY (in forward direction), each of which has as many letter in the same sequence between them in the word as in the English alphabet?
