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set of nine digit number
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Q3. S is the set of all nine-dgit number such that each digits is distinct and non-zero .If the nos. from S are arranged in ascending order,then find the (9!-8!-7!-6!)th number in ascending order?
a) 976584321 b) 879654321 c) 876954321 d) 876594321 e) None
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