Brain Teasers
1, 3, 3, 6, 5, 9, 7, 12, 9 ...
What are the next 3 numbers?
1, 3, 3, 6, 5, 9, 7, 12, 9, ... , ... , ...
1, 3, 3, 6, 5, 9, 7, 12, 9, ... , ... , ...
Answer
15, 11, 18The two series 1, 3, 5, 7, 9, etc. and 3, 6, 9, 12, 15, etc. alternated.
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