Question

what comes in sequence of 5,13,29,61

Answer 1

if u see it clearly 5 x2 =10+3=13

Then,                   13 x2=26+3=29

Then,                   29x2=58+3=61

So next term will be, 61x2=122+3=125

OR

Use the formula,x=a+(n-1)d