जॉइन Examsbookउत्तर : 4. "437"
What is the next number of the following sequence ?
21, 77, 165, 285, ......5
प्र: What is the next number of the following sequence ? 21, 77, 165, 285, ......
- 1404false
- 2415false
- 3426false
- 4437true
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उत्तर : 4. "437"
व्याख्या :
Answer: D) 437 Explanation: The series follow the rule, 21 = 77 = 92-4165 = 132-4285 = 172-4 5,9,13,17,21,(+4)...In the same way next no. will be 212-4 = 441 - 4 = 437