The number of 4 digit numbers that can be formed from seven digits 1,2,3,5,7,8,9 such that no digit being repeated in any number, which are greater than 3000 are: (a) 120 (b) 480 (c) 600 (d) 840
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5 ×6p3 = 600.
so the answer is (c)600.
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