Question

please tell the logic

Answer 1

Answer: 469

Step-by-step explanation :

Multiply the no with 2 and add or subtract 1 in an alternate manner.

In the first step,

4x2-1 =7

Second step:

7x2+1 = 15

In the 3rd step,

15 x 2 -1 = 29

In the 4th step

 29 x 2 +1 = 59

In the 5th step

59 x 2 -1 = 117

In the 6th step,

117 x 2 + 1 = 235

Which finally gives us

235 x 2 - 1 = 469

I hope that my answer is correct.