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How many different numbers can be formed by using six out of the nine digits 1,2,3,.....9 ?

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How many different numbers can be formed by using six out of the nine digits 1,2,3,.....9 ?
posted Jan 13, 2016 by Deepak Jangid

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1 Answer

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9C6 x 6!
60480

answer Jan 13, 2016 by Tejas Naik



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