What should come at the place of question mark? : 31, 63, 127, 255, 511, ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 1023.
31 × 2 + 1 = 63
63 × 2 + 1 = 127
127 × 2 + 1 = 255
255 × 2 + 1 = 511
511 × 2 + 1 = 1022 + 1 = 1023