Alternating SeriesSeries teasers are where you try to complete the sequence of a series of letters, numbers or objects.
Which TWO things come next in the following series:
31, E, 62, O, 58, T, 64, R, 8, T, 80, Y, 68, T...
HintThe numbers and letters change for different reasons.
AnswerThe next two are 82 and O. The number sequence is:
31 x 2 = 62
62 - 4 = 58
58 + 6 = 64
64 / 8 = 8
8 x 10 = 80
80 - 12 = 68
68 + 14 = 82
You can see that the number increases by two each time and repeats in the order of multiplying, subtracting, adding, and dividing.
Then the letter sequence is the last letter from the number before it:
Thirty-one - last letter E
Sixty-two - last letter O
Fifty-eight - last letter T
Sixty-four - last letter R
Eight - last letter T
Eighty - last letter Y
Sixty-eight - last letter T
Eight-two - last letter O
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