Select the number that can replace the question mark (?) in the following series.
1, 5, 9, ?, 21
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 15.
| Understanding |
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Given series: 1, 5, 9, ?, 21 The logic used here is: The number represents the positional value of the vowels. A = 1 E = 5 I = 9 O = 15 U = 21 Hence, option 3 is the correct answer. |