Question

The eighth number of a list of two-digit code numbers is 24. If each number after the first number in the list is four less than the number immediately preceding it, what is the fourth code number in the list?

42
40
32
16
8

Answer 1

40 ??

Answer 2

are you sure?

Answer 3

i m

Answer 4

It is 40. It goes back 4 steps, increasing by 4 each time, hence:
24+(4*4) = 40