Find the Missing NumbersSeries teasers are where you try to complete the sequence of a series of letters, numbers or objects.
9, 46, 23, A, 58, 29, 146, B, 366, C, 916...
Find A, B and C.
HintThis is a recurrence relation, but it has 2 different processes, depending on whether the previous number is even or odd.
B and C are easier to find than A.
AnswerIf the previous number is even, then divide by 2 to find the next number. If the previous number is odd, then multiply by 5 and add 1.
A = 23 x 5 + 1 = 116
B = 146/2 = 73
C = 366/2 = 183
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