Find the missing number: 17, 31, 65, 127, 257, ?

M4maths Previous Puzzles

02 Dec 2019 Missing Number

Find the missing number:

17, 31, 65, 127, 257, ?

OPtion

1) 551
2) 557
3) 537
4) 531
5) 521
6) 511
7) 517
8) 524
9) 527
10) None of these

Solution

Each number is twice the previous one with 3 added or subtracted alternatively.

Correct Option: 6 Best Solution (0)