perplexus.info :: General : A pyramid of balls

A pyramid of balls (Posted on 2002-08-02)

Consider a triangular pyramid of balls, constructed by placing each ball (except those on the bottom) in the hollow formed by the three balls under it. If such a pyramid has 12 balls on the side of the bottom level, how many balls in total does it contain?

See The Solution Submitted by levik

Rating: 2.8333 (6 votes)

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Subject	Author	Date
Puzzle Thoughts	K Sengupta	2023-05-22 00:15:47
An interesting e-mail	TomM	2003-07-04 14:41:56
answer	crazy-kook	2002-09-06 16:12:18
re:	TomM	2002-08-06 00:43:36
No Subject	Eat Ham	2002-08-05 11:13:42
No Subject	TomM	2002-08-02 20:06:57

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