Insert the missing number : 16, 33, 67, 135, 271, (...)
A
371
B
406
C
451
D
505
Correct Answer: 371
Here, next number = previous no × 2) + 1 So, sequencially (16×2) + 1 = 33 33×2 + 1 = 67 by this manner, the next number = (271×2) + 1 = 543