Question 38
Select the number from among the given options that can replace the question mark (?) in the following series.
6, 11, 21, 41, 81, ?
Solution
$$6\times2-1 = 12-1 = 11$$
$$11\times2-1 = 22-1 = 21$$
$$21\times2-1 = 42-1 = 41$$
$$41\times2-1 = 82-1 = 81$$
$$81\times2-1 = 162-1 = 161$$
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
