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Use 1 to 9 digit exactly once and make 9 pairs (a,b) such that a/b=1/2, 1/3, 1/4...1/9?

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Use 1 to 9 digit and make 9 pairs (a,b) such that a/b=1/2, 1/3, 1/4...1/9?

Example: One such pair is (6729, 12358) where 6729/13458=1/2

posted Oct 14, 2017 by anonymous

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