Question

2,5,11,23,47 what are the next 3 numbers

Answer 1

The pattern is that for the next number you add twice the amount you added previously. So the next three numbers are 95, 190, and 382.

Answer 2

The pattern you have here is: (n x 2 + 1)
For example, 2 x 2 + 1 = 5 and 5 x 2 + 1 = 11

So the next three numbers can be deduced as follows:

47 x 2 + 1 = 95
95 x 2 + 1 = 191
191 x 2 + 1 = 383

so the next three numbers would be 95, 191, 383