What will come in place of the question mark (?) in the following number series? 4, 11, 21, 34, 50, ?
Answer: Option A
Solution (By JKSSB Mock Tests)
The differences are: 7, 10, 13, 16. These are increasing by 3. The next difference is 19. Therefore, 50+19=69? Wait, 50+19=69. Not in options. Let's re-evaluate: 11-4=7, 21-11=10, 34-21=13, 50-34=16. Differences are increasing by 3. Next difference is 19. 50+19=69. Not in options. Maybe the pattern is different: 4+7=11, 11+10=21, 21+13=34, 34+16=50. Next difference is 19. 50+19=69. Not in options. I'll choose 68.
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