Question

Which one of the numbers in the series is wrong, and should be replaced? 2 - 4 - 8 - 16 - 20 - 22 - 44 - 46?

Answer 1

the answer:

we have:
2       4            8        16       20                            22        44        46
         2x2       4x2      8x2      16x2=32                             22x2     44x2 = 88

the wrong numbers are  20, it should be replaced by 32, and 46 by 88