DIRECTIONS: What should come in place of the question mark (?) in the following series?
7, 13, 25, 49, 97, 193, ?, 769
1
385
2
193
3
49
4
13
DIRECTIONS: What should come in place of the question mark (?) in the following series?
7, 13, 25, 49, 97, 193, ?, 769