Select the number that can replace the question mark (?) in the following series.
8, 17, 9, 19, 10, 21, ?, ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 11, 23.
| Understanding |
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Given series: 8, 17, 9, 19, 10, 21, ?, ? There are two alternate series here: 1) 8, 9, 10, ... 2) 17, 19, 21, .... For the first series, the next number is 11 and for the second series the next number is 23. |