Thu Jan 17, 2013 10:12 pm by tartle |
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Arrange 10 balls in 5 lines in such a way that each line contains 4 balls and only 4 balls. |
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Wed Jan 23, 2013 10:15 am by chetanls |
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This is quite simple - draw a pentagonal star and you can place 4 balls on each of the intersecting points of the 5 lines |
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All times are GMT
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