Question 4
Select the correct option that will fill in the blank and complete the series.
21, 43, 85, 171, 341, .......
Solution
Logic of Question is..
21-43 = 22 (previous number 21+1 =22)
43-85 = 42 (previous number 43-1=42)
85-171 = 86 (previous number 85+1 =86)
171-341 = 170 (previous number 171-1=170)
Hence, 341+1=342
342 + 341 = 683
Get AI Help
Create a FREE account and get:
- Free SSC Study Material - 18000 Questions
- 230+ SSC previous papers with solutions PDF
- 100+ SSC Online Tests for Free
