0, 1, 2, 4, 6, 9, 12, 16, ?
What number should replace the question mark?
Answer:
20: add 1, 1, 2, 2, 3, 3, 4, 4.
Showing posts with label ?. Show all posts
Showing posts with label ?. Show all posts
Saturday, November 10, 2012
0, 1, 2, 4, 6, 9, 12, 16, ?
What number should replace the question mark?
Answer:
20: add 1, 1, 2, 2, 3, 3, 4, 4.
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